What is Mihail Marin GM Play the Pirc like a Grandmaster Vol. 1 Positional lines for Cheap?
Is there an absolute truth in a flexible opening such as the Pirc Defense? After I had played and studied the Pirc intensively for more than ten years I was sure I had found the best move order against each White system. Then I stopped playing the opening for a while and when I checked new ideas I realized that things were not that simple. Thus, the repertoire I recommend on this DVD is a combination of good lines in my old repertoire that have stood the test of time and new lines inspired by my fresh look at the Pirc. 1* In the positional systems White does not try to refute the Pirc from the very first moves, but aims for a long strategic battle to prove that his space advantage and better development will finally give him the better position. These systems are by no means harmless and to hold his own and to get counterplay Black should first of all master the basic tactical and positional ideas I explain in detail. There are a few concrete lines I examine together with the general ideas and these lines should be rather easy to memorize. If you study the DVD carefully you should be able to reach complex strategic middlegames in which the better player has the better chances to win!
• Video running time: 4 hours (English)
• Interactive training including video feedback
• Exclusive database with 46 essential games
• 2 Mihail Marin’s „Pirc“ articles published in ChessBase Magazine
• Including CB 12 – Reader
Mihail Marin GM Play the Pirc like a Grandmaster Vol. 1 Positional lines Index:
📄 119-B08 Pirc 8e5.cba (13.50 KB)
📄 119-B08 Pirc 8e5.cbc (276.00 B)
📄 119-B08 Pirc 8e5.cbe (316.00 B)
📄 119-B08 Pirc 8e5.cbg (52.29 KB)
📄 119-B08 Pirc 8e5.cbh (828.00 B)
📄 119-B08 Pirc 8e5.cbj (1.33 KB)
📄 119-B08 Pirc 8e5.cbm (2.03 KB)
📄 119-B08 Pirc 8e5.cbp (1.66 KB)
📄 119-B08 Pirc 8e5.cbs (1.02 KB)
📄 119-B08 Pirc 8e5.cbt (1.57 KB)
📄 119-B08 Pirc 8e5.cbtt (32.00 B)
📄 119-B08 Pirc 8e5.ini (660.00 B)
📄 B07 Pirc Defence-128.cba (24.10 KB)
📄 B07 Pirc Defence-128.cbc (276.00 B)
📄 B07 Pirc Defence-128.cbe (316.00 B)
📄 B07 Pirc Defence-128.cbg (63.43 KB)
📄 B07 Pirc Defence-128.cbh (1.12 KB)
📄 B07 Pirc Defence-128.cbj (1.86 KB)
📄 B07 Pirc Defence-128.cbm (2.03 KB)
📄 B07 Pirc Defence-128.cbp (2.32 KB)
📄 B07 Pirc Defence-128.cbs (164.00 B)
📄 B07 Pirc Defence-128.cbt (2.25 KB)
📄 B07 Pirc Defence-128.cbtt (93.00 B)
📄 B07 Pirc Defence-128.flags (76.00 B)
📄 B07 Pirc Defence-128.ini (699.00 B)
📄 F1744262960.htm (15.21 KB)
📄 F1744312340.htm (15.21 KB)
📄 F2261285460.htm (15.21 KB)
📄 Pirc 1.cba (20.03 KB)
📄 Pirc 1.cbc (218.00 B)
📄 Pirc 1.cbe (32.00 B)
📄 Pirc 1.cbg (19.30 KB)
📄 Pirc 1.cbh (1.03 KB)
📄 Pirc 1.cbj (1.71 KB)
📄 Pirc 1.cbl (32.00 B)
📄 Pirc 1.cbm (1.03 KB)
📄 Pirc 1.cbp (1.47 KB)
📄 Pirc 1.cbs (100.00 B)
📄 Pirc 1.cbt (131.00 B)
📄 Pirc 1.cbtt (93.00 B)
📄 Pirc 1.cib (1.95 KB)
📄 Pirc 1.cit (892.00 B)
📄 Pirc 1.ico (191.07 KB)
📄 Pirc 1.ini (1.24 KB)
📄 Pirc Austrian Attack 6_Bd3 Na6.cba (23.99 KB)
📄 Pirc Austrian Attack 6_Bd3 Na6.cbc (714.00 B)
📄 Pirc Austrian Attack 6_Bd3 Na6.cbe (320.00 B)
📄 Pirc Austrian Attack 6_Bd3 Na6.cbg (7.63 KB)
📄 Pirc Austrian Attack 6_Bd3 Na6.cbh (1.66 KB)
📄 Pirc Austrian Attack 6_Bd3 Na6.cbj (2.77 KB)
📄 Pirc Austrian Attack 6_Bd3 Na6.cbm (32.00 B)
📄 Pirc Austrian Attack 6_Bd3 Na6.cbp (3.96 KB)
📄 Pirc Austrian Attack 6_Bd3 Na6.cbs (1.36 KB)
📄 Pirc Austrian Attack 6_Bd3 Na6.cbt (2.54 KB)
📄 Pirc Austrian Attack 6_Bd3 Na6.cbtt (93.00 B)
📄 Pirc Austrian Attack 6_Bd3 Na6.flags (76.00 B)
📄 Pirc Austrian Attack 6_Bd3 Na6.ini (902.00 B)
📄 Pirc I positional – My games.cba (7.82 KB)
📄 Pirc I positional – My games.cbc (590.00 B)
📄 Pirc I positional – My games.cbe (392.00 B)
📄 Pirc I positional – My games.cbg (8.50 KB)
📄 Pirc I positional – My games.cbh (2.16 KB)
📄 Pirc I positional – My games.cbj (3.61 KB)
📄 Pirc I positional – My games.cbm (32.00 B)
📄 Pirc I positional – My games.cbp (2.71 KB)
📄 Pirc I positional – My games.cbs (1.76 KB)
📄 Pirc I positional – My games.cbt (3.80 KB)
📄 Pirc I positional – My games.cbtt (93.00 B)
📄 Pirc I positional – My games.flags (76.00 B)
📄 Pirc I positional – My games.ini (728.00 B)
📄 Pirc I positional – games and analysis.cba (49.69 KB)
📄 Pirc I positional – games and analysis.cbc (900.00 B)
📄 Pirc I positional – games and analysis.cbe (2.28 KB)
📄 Pirc I positional – games and analysis.cbg (15.68 KB)
📄 Pirc I positional – games and analysis.cbh (5.97 KB)
📄 Pirc I positional – games and analysis.cbj (10.09 KB)
📄 Pirc I positional – games and analysis.cbm (32.00 B)
📄 Pirc I positional – games and analysis.cbp (14.69 KB)
📄 Pirc I positional – games and analysis.cbs (4.28 KB)
📄 Pirc I positional – games and analysis.cbt (10.28 KB)
📄 Pirc I positional – games and analysis.cbtt (93.00 B)
📄 Pirc I positional – games and analysis.flags (76.00 B)
📄 Pirc I positional – games and analysis.ini (717.00 B)
📄 pirc austrian attack 6_bd3 na6.cbl (32.00 B)
📂 119-B08 Pirc 8e5.html
- 📄 14212328p0.jpg (25.51 KB)
- 📄 14212328p1.jpg (25.55 KB)
- 📄 14212328p10.jpg (25.07 KB)
- 📄 14212328p11.jpg (25.05 KB)
- 📄 14212328p12.jpg (25.09 KB)
- 📄 14212328p13.jpg (25.13 KB)
- 📄 14212328p14.jpg (25.11 KB)
- 📄 14212328p2.jpg (24.27 KB)
- 📄 14212328p3.jpg (25.56 KB)
- 📄 14212328p4.jpg (25.04 KB)
- 📄 14212328p5.jpg (25.09 KB)
- 📄 14212328p6.jpg (13.53 KB)
- 📄 14212328p7.jpg (13.55 KB)
- 📄 14212328p8.jpg (25.06 KB)
- 📄 14212328p9.jpg (25.09 KB)
- 📄 Marin.jpg (10.75 KB)
- 📄 ROM.gif (1.05 KB)
- 📄 authors.jpg (7.09 KB)
- 📄 autoren.jpg (7.10 KB)
- 📄 cblogo.gif (2.33 KB)
- 📄 eroeffnung.jpg (8.11 KB)
- 📄 openings.jpg (7.51 KB)
📂 B07 Pirc Defence-128.html
- 📄 40267187p0.jpg (25.55 KB)
- 📄 40267187p1.jpg (25.43 KB)
- 📄 40267187p10.jpg (25.53 KB)
- 📄 40267187p11.jpg (25.64 KB)
- 📄 40267187p12.jpg (25.60 KB)
- 📄 40267187p13.jpg (25.57 KB)
- 📄 40267187p2.jpg (25.49 KB)
- 📄 40267187p3.jpg (25.48 KB)
- 📄 40267187p4.jpg (25.54 KB)
- 📄 40267187p5.jpg (25.57 KB)
- 📄 40267187p6.jpg (25.60 KB)
- 📄 40267187p7.jpg (25.60 KB)
- 📄 40267187p8.jpg (25.54 KB)
- 📄 40267187p9.jpg (24.57 KB)
- 📄 eroeffnung.jpg (8.11 KB)
- 📄 openings.jpg (7.51 KB)
📂 Pirc 1.html
- 📄 Intro Pirc 1 und 2.wmv (1.47 MB)
- 📄 Pirc 1 EN 02 Classical line.wmv (2.10 MB)
- 📄 Pirc 1 EN 03 7_a4 Qc7 8_Be3.wmv (1.89 MB)
- 📄 Pirc 1 EN 04 10_Bd4.wmv (2.12 MB)
- 📄 Pirc 1 EN 05 9_dxe5 dxe5.wmv (1.14 MB)
- 📄 Pirc 1 EN 06 8_Re1 e5.wmv (1.60 MB)
- 📄 Pirc 1 EN 07 7_h3 Qc7 8_Be3.wmv (2.07 MB)
- 📄 Pirc 1 EN 08 8_e5 and 8_Bf4 NEU.wmv (1.15 MB)
- 📄 Pirc 1 EN 09 7_Re1 Nbd7 8_e5.wmv (1.42 MB)
- 📄 Pirc 1 EN 10 7_Re1 Nbd7 8_Bf4.wmv (1.96 MB)
- 📄 Pirc 1 EN 11 7_Various.wmv (1.38 MB)
- 📄 Pirc 1 EN 12 5_h3 0-0 6_Be3.wmv (1.59 MB)
- 📄 Pirc 1 EN 13 10_Be2.wmv (1.02 MB)
- 📄 Pirc 1 EN 14 5_h3 various.wmv (951.50 KB)
- 📄 Pirc 1 EN 15 5_Be3 0-0 6_Qd2.wmv (1.19 MB)
- 📄 Pirc 1 EN 16 7_Bd3.wmv (566.43 KB)
- 📄 Pirc 1 EN 17 7_Bh6 NEU.wmv (1.27 MB)
- 📄 Pirc 1 EN 18 10_a4.wmv (1.22 MB)
- 📄 Pirc 1 EN 19 fianchetto 12_Rad1 NEU.wmv (2.06 MB)
- 📄 Pirc 1 EN 20 fianchetto 12_f4.wmv (2.12 MB)
- 📄 Pirc 1 EN 21 fianchetto deviations NEU.wmv (1.99 MB)
- 📄 Pirc 1 EN 22 3_f3.wmv (1.90 MB)
- 📄 Play.jpg (50.11 KB)
- 📄 Quiz 1 EN 01.cms (355.00 B)
- 📄 Quiz 1 EN 02.cms (296.00 B)
- 📄 Quiz 1 EN 03.cms (280.00 B)
- 📄 Quiz 1 EN 04.cms (410.00 B)
- 📄 Quiz 1 EN 05.cms (403.00 B)
- 📄 Quiz 1 EN 06.cms (526.00 B)
- 📄 Quiz 1 EN 07.cms (296.00 B)
- 📄 Quiz 1 EN 08.cms (302.00 B)
- 📄 Quiz 1 EN 09.cms (415.00 B)
- 📄 Quiz 1 EN 10.cms (305.00 B)
- 📄 pirc1eng.png (37.87 KB)
- 📂 Quiz 1 EN 01
- 📄 8z1p3p1pz1pp1k1p1z4p3zP2nP3zNP2KP2z2P3PPz8 w – – 0 1x0y0v4u0.txt (2.45 KB)
- 📄 8z1p3p1pz1pp1k1p1z4p3zP2nP3zNP2KP2z2P3PPz8 w – – 0 1x0y0v4u0.wmv (35.95 KB)
- 📄 8z1p3p1pz1pp1k1p1z4p3zP2nP3zNP2KP2z2P3PPz8 w – – 0 1x10y11v2u5.txt (11.14 KB)
- 📄 8z1p3p1pz1pp1k1p1z4p3zP2nP3zNP2KP2z2P3PPz8 w – – 0 1x10y11v2u5.wmv (193.08 KB)
- 📄 8z1p3p1pz1pp1k1p1z4p3zP2nP3zNP2KP2z2P3PPz8 w – – 0 1x34y26v3u2.txt (3.93 KB)
- 📄 8z1p3p1pz1pp1k1p1z4p3zP2nP3zNP2KP2z2P3PPz8 w – – 0 1x34y26v3u2.wmv (62.45 KB)
- 📄 Quiz 1 EN 01000.txt (8.56 KB)
- 📄 Quiz 1 EN 01000.wmv (166.59 KB)
- 📂 Quiz 1 EN 02
- 📄 Quiz 1 EN 02000.txt (4.47 KB)
- 📄 Quiz 1 EN 02000.wmv (74.16 KB)
- 📄 r4k2zpp1n1p1pz2p1bbp1zP3p3zN3P3z4BP2z1PP1B1PPz3R2K1 w – – 0 1x0y0v4u0.txt (1.91 KB)
- 📄 r4k2zpp1n1p1pz2p1bbp1zP3p3zN3P3z4BP2z1PP1B1PPz3R2K1 w – – 0 1x0y0v4u0.wmv (31.64 KB)
- 📄 r4k2zpp1n1p1pz2p1bbp1zP3p3zN3P3z4BP2z1PP1B1PPz3R2K1 w – – 0 1x33y19v2u5.txt (16.16 KB)
- 📄 r4k2zpp1n1p1pz2p1bbp1zP3p3zN3P3z4BP2z1PP1B1PPz3R2K1 w – – 0 1x33y19v2u5.wmv (232.52 KB)
- 📂 Quiz 1 EN 03
- 📄 8z4kpbnzp1p3p1zPp2p2pz1P2Pn2zN1P1BP2z5P1Pz5BK1 w – – 0 1x0y0v4u0.txt (2.12 KB)
- 📄 8z4kpbnzp1p3p1zPp2p2pz1P2Pn2zN1P1BP2z5P1Pz5BK1 w – – 0 1x0y0v4u0.wmv (35.95 KB)
- 📄 8z4kpbnzp1p3p1zPp2p2pz1P2Pn2zN1P1BP2z5P1Pz5BK1 w – – 0 1x2y12v2u5.txt (6.32 KB)
- 📄 8z4kpbnzp1p3p1zPp2p2pz1P2Pn2zN1P1BP2z5P1Pz5BK1 w – – 0 1x2y12v2u5.wmv (118.52 KB)
- 📄 Quiz 1 EN 03000.txt (4.76 KB)
- 📄 Quiz 1 EN 03000.wmv (102.50 KB)
- 📂 Quiz 1 EN 04
- 📄 Quiz 1 EN 04000.txt (5.75 KB)
- 📄 Quiz 1 EN 04000.wmv (90.79 KB)
- 📄 r3nrk1z2qnppbpzpp1p2p1z2pBP3zP2P1P2z4B2Pz1PPN2P1zR2Q1RK1 b – – 0 1x0y0v4u0.txt (2.23 KB)
- 📄 r3nrk1z2qnppbpzpp1p2p1z2pBP3zP2P1P2z4B2Pz1PPN2P1zR2Q1RK1 b – – 0 1x0y0v4u0.wmv (26.71 KB)
- 📄 r3nrk1z2qnppbpzpp1p2p1z2pBP3zP2P1P2z4B2Pz1PPN2P1zR2Q1RK1 b – – 0 1x20y27v2u5.txt (9.66 KB)
- 📄 r3nrk1z2qnppbpzpp1p2p1z2pBP3zP2P1P2z4B2Pz1PPN2P1zR2Q1RK1 b – – 0 1x20y27v2u5.wmv (133.31 KB)
- 📄 r3nrk1z2qnppbpzpp1p2p1z2pBP3zP2P1P2z4B2Pz1PPN2P1zR2Q1RK1 b – – 0 1x7y31v3u2.txt (3.06 KB)
- 📄 r3nrk1z2qnppbpzpp1p2p1z2pBP3zP2P1P2z4B2Pz1PPN2P1zR2Q1RK1 b – – 0 1x7y31v3u2.wmv (45.81 KB)
- 📂 Quiz 1 EN 05
- 📄 Quiz 1 EN 05000.txt (2.92 KB)
- 📄 Quiz 1 EN 05000.wmv (57.52 KB)
- 📄 r1bq1r2zp2nppkpz2p3p1z1p2P3z5Qn1z2NB1N2zPPP2PPPzR3K2R b KQ – 0 1x0y0v4u0.txt (2.35 KB)
- 📄 r1bq1r2zp2nppkpz2p3p1z1p2P3z5Qn1z2NB1N2zPPP2PPPzR3K2R b KQ – 0 1x0y0v4u0.wmv (37.18 KB)
- 📄 r1bq1r2zp2nppkpz2p3p1z1p2P3z5Qn1z2NB1N2zPPP2PPPzR3K2R b KQ – 0 1x30y20v3u2.txt (3.24 KB)
- 📄 r1bq1r2zp2nppkpz2p3p1z1p2P3z5Qn1z2NB1N2zPPP2PPPzR3K2R b KQ – 0 1x30y20v3u2.wmv (57.52 KB)
- 📄 r1bq1r2zp2nppkpz2p3p1z1p2P3z5Qn1z2NB1N2zPPP2PPPzR3K2R b KQ – 0 1x30y36v2u5.txt (7.57 KB)
- 📄 r1bq1r2zp2nppkpz2p3p1z1p2P3z5Qn1z2NB1N2zPPP2PPPzR3K2R b KQ – 0 1x30y36v2u5.wmv (124.69 KB)
- 📂 Quiz 1 EN 06
- 📄 2b1r1k1z1p2rpb1z1qpp1np1zp1n5zP2NP1Ppz1PB2P2z2PQR1BPz1N1R3K b – – 0 1x0y0v4u0.txt (2.87 KB)
- 📄 2b1r1k1z1p2rpb1z1qpp1np1zp1n5zP2NP1Ppz1PB2P2z2PQR1BPz1N1R3K b – – 0 1x0y0v4u0.wmv (38.42 KB)
- 📄 2b1r1k1z1p2rpb1z1qpp1np1zp1n5zP2NP1Ppz1PB2P2z2PQR1BPz1N1R3K b – – 0 1x20y35v3u2.txt (3.75 KB)
- 📄 2b1r1k1z1p2rpb1z1qpp1np1zp1n5zP2NP1Ppz1PB2P2z2PQR1BPz1N1R3K b – – 0 1x20y35v3u2.wmv (52.59 KB)
- 📄 2b1r1k1z1p2rpb1z1qpp1np1zp1n5zP2NP1Ppz1PB2P2z2PQR1BPz1N1R3K b – – 0 1x45y35v2u5.txt (8.37 KB)
- 📄 2b1r1k1z1p2rpb1z1qpp1np1zp1n5zP2NP1Ppz1PB2P2z2PQR1BPz1N1R3K b – – 0 1x45y35v2u5.wmv (119.76 KB)
- 📄 2b1r1k1z1p2rpb1z1qpp1np1zp1n5zP2NP1Ppz1PB2P2z2PQR1BPz1N1R3K b – – 0 1x45y51v3u2.txt (5.16 KB)
- 📄 2b1r1k1z1p2rpb1z1qpp1np1zp1n5zP2NP1Ppz1PB2P2z2PQR1BPz1N1R3K b – – 0 1x45y51v3u2.wmv (78.47 KB)
- 📄 Quiz 1 EN 06000.txt (4.28 KB)
- 📄 Quiz 1 EN 06000.wmv (62.45 KB)
- 📂 Quiz 1 EN 07
- 📄 Quiz 1 EN 07000.txt (2.98 KB)
- 📄 Quiz 1 EN 07000.wmv (57.52 KB)
- 📄 r5k1zpp2ppbpzq2p1np1z3P4zP1rB4z1RN2P2z1PPQ2PPz3R2K1 b – – 0 1x0y0v4u0.txt (1.77 KB)
- 📄 r5k1zpp2ppbpzq2p1np1z3P4zP1rB4z1RN2P2z1PPQ2PPz3R2K1 b – – 0 1x0y0v4u0.wmv (27.94 KB)
- 📄 r5k1zpp2ppbpzq2p1np1z3P4zP1rB4z1RN2P2z1PPQ2PPz3R2K1 b – – 0 1x45y35v2u5.txt (10.02 KB)
- 📄 r5k1zpp2ppbpzq2p1np1z3P4zP1rB4z1RN2P2z1PPQ2PPz3R2K1 b – – 0 1x45y35v2u5.wmv (145.64 KB)
- 📂 Quiz 1 EN 08
- 📄 Quiz 1 EN 08000.txt (8.53 KB)
- 📄 Quiz 1 EN 08000.wmv (159.81 KB)
- 📄 q4r2z1bn1ppkpz3p1np1z1ppP4zr3P3z2PBQNNPz1P3PP1z3RR1K1 w – – 0 1x0y0v4u0.txt (2.45 KB)
- 📄 q4r2z1bn1ppkpz3p1np1z1ppP4zr3P3z2PBQNNPz1P3PP1z3RR1K1 w – – 0 1x0y0v4u0.wmv (40.88 KB)
- 📄 q4r2z1bn1ppkpz3p1np1z1ppP4zr3P3z2PBQNNPz1P3PP1z3RR1K1 w – – 0 1x35y36v2u5.txt (14.24 KB)
- 📄 q4r2z1bn1ppkpz3p1np1z1ppP4zr3P3z2PBQNNPz1P3PP1z3RR1K1 w – – 0 1x35y36v2u5.wmv (204.18 KB)
- 📂 Quiz 1 EN 09
- 📄 Quiz 1 EN 09000.txt (5.57 KB)
- 📄 Quiz 1 EN 09000.wmv (61.22 KB)
- 📄 r4rk1z1bnq2bpzpp1p2p1z2pP1p1nzP1B5z2NQBN1Pz1PP2PP1zR3R1K1 b – – 0 1x0y0v4u0.txt (3.72 KB)
- 📄 r4rk1z1bnq2bpzpp1p2p1z2pP1p1nzP1B5z2NQBN1Pz1PP2PP1zR3R1K1 b – – 0 1x0y0v4u0.wmv (45.19 KB)
- 📄 r4rk1z1bnq2bpzpp1p2p1z2pP1p1nzP1B5z2NQBN1Pz1PP2PP1zR3R1K1 b – – 0 1x13y12v2u5.txt (10.25 KB)
- 📄 r4rk1z1bnq2bpzpp1p2p1z2pP1p1nzP1B5z2NQBN1Pz1PP2PP1zR3R1K1 b – – 0 1x13y12v2u5.wmv (117.91 KB)
- 📄 r4rk1z1bnq2bpzpp1p2p1z2pP1p1nzP1B5z2NQBN1Pz1PP2PP1zR3R1K1 b – – 0 1x54y18v3u2.txt (12.18 KB)
- 📄 r4rk1z1bnq2bpzpp1p2p1z2pP1p1nzP1B5z2NQBN1Pz1PP2PP1zR3R1K1 b – – 0 1x54y18v3u2.wmv (144.40 KB)
- 📂 Quiz 1 EN 10
- 📄 Quiz 1 EN 10000.txt (7.81 KB)
- 📄 Quiz 1 EN 10000.wmv (116.67 KB)
- 📄 r3rnk1zp4pbpz1npp2p1zqp2p3z3PP3zPPN1B1PPz2PQ1PB1zR4RK1 w – – 0 1x0y0v4u0.txt (3.16 KB)
- 📄 r3rnk1zp4pbpz1npp2p1zqp2p3z3PP3zPPN1B1PPz2PQ1PB1zR4RK1 w – – 0 1x0y0v4u0.wmv (42.11 KB)
- 📄 r3rnk1zp4pbpz1npp2p1zqp2p3z3PP3zPPN1B1PPz2PQ1PB1zR4RK1 w – – 0 1x27y28v2u5.txt (21.80 KB)
- 📄 r3rnk1zp4pbpz1npp2p1zqp2p3z3PP3zPPN1B1PPz2PQ1PB1zR4RK1 w – – 0 1x27y28v2u5.wmv (243.61 KB)
Feel free to reach out to our CHAT support for personalized assistance and detailed information tailored to your needs. We’re here to help!













Reviews
There are no reviews yet.