Eigenmann Rapid Engine Test

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The Eigenmann Rapid Engine Test (ERET) designed by Walter Eigenmann is a collection of 111 test-positions covering a wide range of chess motives with unique solutions. ERET was published in the Glarean Magazin in March 2017. The number of correct solutions in 15 seconds per position is the result to roughly compare engine skills.

=EPD Record= Extended Position Description : r1bqk1r1/1p1p1n2/p1n2pN1/2p1b2Q/2P1Pp2/1PN5/PB4PP/R4RK1 w q - - bm Rxf4; id "ERET 001 - Relief"; r1n2N1k/2n2K1p/3pp3/5Pp1/b5R1/8/1PPP4/8 w - - bm Ng6; id "ERET 002 - Zugzwang"; r1b1r1k1/1pqn1pbp/p2pp1p1/P7/1n1NPP1Q/2NBBR2/1PP3PP/R6K w - - bm f5; id "ERET 003 - Open Line"; 5b2/p2k1p2/P3pP1p/n2pP1p1/1p1P2P1/1P1KBN2/7P/8 w - - bm Nxg5; id "ERET 004 - Endgame"; r3kbnr/1b3ppp/pqn5/1pp1P3/3p4/1BN2N2/PP2QPPP/R1BR2K1 w kq - - bm Bxf7; id "ERET 005 - Bishop Sacrifice f7"; r2r2k1/1p1n1pp1/4pnp1/8/PpBRqP2/1Q2B1P1/1P5P/R5K1 b - - bm Nc5; id "ERET 006 - Knight Sacrifice"; 2rq1rk1/pb1n1ppN/4p3/1pb5/3P1Pn1/P1N5/1PQ1B1PP/R1B2RK1 b - - bm Nde5; id "ERET 007 - Bishop Pair"; r2qk2r/ppp1bppp/2n5/3p1b2/3P1Bn1/1QN1P3/PP3P1P/R3KBNR w KQkq - bm Qxd5; id "ERET 008 - Center"; rnb1kb1r/p4p2/1qp1pn2/1p2N2p/2p1P1p1/2N3B1/PPQ1BPPP/3RK2R w Kkq - bm Ng6; id "ERET 009 - Knight Sacrifice"; 5rk1/pp1b4/4pqp1/2Ppb2p/1P2p3/4Q2P/P3BPP1/1R3R1K b - - bm d4; id "ERET 010 - Passed Pawn"; r1b2r1k/ppp2ppp/8/4p3/2BPQ3/P3P1K1/1B3PPP/n3q1NR w - - bm dxe5, Nf3; id "ERET 011 - Attacking Castle"; 1nkr1b1r/5p2/1q2p2p/1ppbP1p1/2pP4/2N3B1/1P1QBPPP/R4RK1 w - - bm Nxd5; id "ERET 012 - Relief"; 1nrq1rk1/p4pp1/bp2pn1p/3p4/2PP1B2/P1PB2N1/4QPPP/1R2R1K1 w - - bm Qd2, Bc2; id "ERET 013 - Center"; 5k2/1rn2p2/3pb1p1/7p/p3PP2/PnNBK2P/3N2P1/1R6 w - - bm Nf3; id "ERET 014 - Endgame"; 8/p2p4/r7/1k6/8/pK5Q/P7/b7 w - - bm Qd3; id "ERET 015 - Endgame"; 1b1rr1k1/pp1q1pp1/8/NP1p1b1p/1B1Pp1n1/PQR1P1P1/4BP1P/5RK1 w - - bm Nc6; id "ERET 016 - Pos. Sacrifice"; 1r3rk1/6p1/p1pb1qPp/3p4/4nPR1/2N4Q/PPP4P/2K1BR2 b - - bm Rxb2; id "ERET 017 - King Attack"; r1b1kb1r/1p1n1p2/p3pP1p/q7/3N3p/2N5/P1PQB1PP/1R3R1K b kq - bm Qg5; id "ERET 018 - Development"; 3kB3/5K2/7p/3p4/3pn3/4NN2/8/1b4B1 w - - bm Nf5; id "ERET 019 - Endgame"; 1nrrb1k1/1qn1bppp/pp2p3/3pP3/N2P3P/1P1B1NP1/PBR1QPK1/2R5 w - - bm Bxh7; id "ERET 020 - Bishop Sacrifice h7"; 3rr1k1/1pq2b1p/2pp2p1/4bp2/pPPN4/4P1PP/P1QR1PB1/1R4K1 b - - bm Rc8; id "ERET 021 - Prophylaxis"; r4rk1/p2nbpp1/2p2np1/q7/Np1PPB2/8/PPQ1N1PP/1K1R3R w - - bm h4; id "ERET 022 - Passed Pawn"; r3r2k/1bq1nppp/p2b4/1pn1p2P/2p1P1QN/2P1N1P1/PPBB1P1R/2KR4 w - - bm Ng6; id "ERET 023 - Attacking Castle"; r2q1r1k/3bppbp/pp1p4/2pPn1Bp/P1P1P2P/2N2P2/1P1Q2P1/R3KB1R w KQ - am b3; id "ERET 024 - Development"; 2kb4/p7/r1p3p1/p1P2pBp/R2P3P/2K3P1/5P2/8 w - - bm Bxd8; id "ERET 025 - Endgame"; rqn2rk1/pp2b2p/2n2pp1/1N2p3/5P1N/1PP1B3/4Q1PP/R4RK1 w - - bm Nxg6; id "ERET 026 - Knight Sacrifice"; 8/3Pk1p1/1p2P1K1/1P1Bb3/7p/7P/6P1/8 w - - bm g4; id "ERET 027 - Zugzwang"; 4rrk1/Rpp3pp/6q1/2PPn3/4p3/2N5/1P2QPPP/5RK1 w - - am Rxb7; id "ERET 028 - Poisoned Pawn"; 2q2rk1/2p2pb1/PpP1p1pp/2n5/5B1P/3Q2P1/4PPN1/2R3K1 w - - bm Rxc5; id "ERET 029 - Exchange Sacrifice"; rnbq1r1k/4p1bP/p3p3/1pn5/8/2Np1N2/PPQ2PP1/R1B1KB1R w KQ - bm Nh4; id "ERET 030 - Initiative"; 4b1k1/1p3p2/4pPp1/p2pP1P1/P2P4/1P1B4/8/2K5 w - - bm b4; id "ERET 031 - Endgame"; 8/7p/5P1k/1p5P/5p2/2p1p3/P1P1P1P1/1K3Nb1 w - - bm Ng3; id "ERET 032 - Zugzwang"; r3kb1r/ppnq2pp/2n5/4pp2/1P1PN3/P4N2/4QPPP/R1B1K2R w KQkq - bm Nxe5; id "ERET 033 - Initiative"; b4r1k/6bp/3q1ppN/1p2p3/3nP1Q1/3BB2P/1P3PP1/2R3K1 w - - bm Rc8; id "ERET 034 - Bishop Pair"; r3k2r/5ppp/3pbb2/qp1Np3/2BnP3/N7/PP1Q1PPP/R3K2R w KQkq - bm Nxb5; id "ERET 035 - Exchange Sacrifice"; r1k1n2n/8/pP6/5R2/8/1b1B4/4N3/1K5N w - - bm b7; id "ERET 036 - Endgame"; 1k6/bPN2pp1/Pp2p3/p1p5/2pn4/3P4/PPR5/1K6 w - - bm Na8; id "ERET 037 - Zugzwang"; 8/6N1/3kNKp1/3p4/4P3/p7/P6b/8 w - - bm exd5; id "ERET 038 - Endgame"; r1b1k2r/pp3ppp/1qn1p3/2bn4/8/6P1/PPN1PPBP/RNBQ1RK1 w kq - bm a3; id "ERET 039 - Development"; r3kb1r/3n1ppp/p3p3/1p1pP2P/P3PBP1/4P3/1q2B3/R2Q1K1R b kq - bm Bc5; id "ERET 040 - King Safety"; 3q1rk1/2nbppb1/pr1p1n1p/2pP1Pp1/2P1P2Q/2N2N2/1P2B1PP/R1B2RK1 w - - bm Nxg5; - id "ERET 041 - Knight Sacrifice"; 8/2k5/N3p1p1/2KpP1P1/b2P4/8/8/8 b - - bm Kb7; id "ERET 042 - Endgame"; 2r1rbk1/1pqb1p1p/p2p1np1/P4p2/3NP1P1/2NP1R1Q/1P5P/R5BK w - - bm Nxf5; id "ERET 043 - Knight Sacrifice"; rnb2rk1/pp2q2p/3p4/2pP2p1/2P1Pp2/2N5/PP1QBRPP/R5K1 w - - bm h4; id "ERET 044 - Open Line"; 5rk1/p1p1rpb1/q1Pp2p1/3Pp2p/4Pn2/1R4N1/P1BQ1PPP/R5K1 w - - bm Rb4; id "ERET 045 - Initiative"; 8/4nk2/1p3p2/1r1p2pp/1P1R1N1P/6P1/3KPP2/8 w - - bm Nd3; id "ERET 046 - Endgame"; 4kbr1/1b1nqp2/2p1p3/2N4p/1p1PP1pP/1PpQ2B1/4BPP1/r4RK1 w - - bm Nxb7; id "ERET 047 - Relief"; r1b2rk1/p2nqppp/1ppbpn2/3p4/2P5/1PN1PN2/PBQPBPPP/R4RK1 w - - bm cxd5; id "ERET 048 - Stong Squares"; r1b1kq1r/1p1n2bp/p2p2p1/3PppB1/Q1P1N3/8/PP2BPPP/R4RK1 w kq - bm f4; id "ERET 049 - Development"; r4r1k/p1p3bp/2pp2p1/4nb2/N1P4q/1P5P/PBNQ1PP1/R4RK1 b - - bm Nf3; id "ERET 050 - King Attack"; 6k1/pb1r1qbp/3p1p2/2p2p2/2P1rN2/1P1R3P/PB3QP1/3R2K1 b - - bm Bh6; id "ERET 051 - Defence"; 2r2r2/1p1qbkpp/p2ppn2/P1n1p3/4P3/2N1BB2/QPP2PPP/R4RK1 w - - bm b4; id "ERET 052 - Stong Squares"; r1bq1rk1/p4ppp/3p2n1/1PpPp2n/4P2P/P1PB1PP1/2Q1N3/R1B1K2R b KQ - bm c4; id "ERET 053 - Pos. Sacrifice"; 2b1r3/5pkp/6p1/4P3/QppqPP2/5RPP/6BK/8 b - - bm c3; id "ERET 054 - Endgame"; r2q1rk1/1p2bpp1/p1b2n1p/8/5B2/2NB4/PP1Q1PPP/3R1RK1 w - - bm Bxh6; id "ERET 055 - Bishop Sacrifice h6"; r2qr1k1/pp2bpp1/2pp3p/4nbN1/2P4P/4BP2/PPPQ2P1/1K1R1B1R w - - bm Be2; id "ERET 056 - Zwischenzug"; r2qr1k1/pp1bbp2/n5p1/2pPp2p/8/P2PP1PP/1P2N1BK/R1BQ1R2 w - - bm d6; id "ERET 057 - Exchange"; 8/8/R7/1b4k1/5p2/1B3r2/7P/7K w - - bm h4; id "ERET 058 - Endgame"; rq6/5k2/p3pP1p/3p2p1/6PP/1PB1Q3/2P5/1K6 w - - bm Qd3; id "ERET 059 - Endgame"; q2B2k1/pb4bp/4p1p1/2p1N3/2PnpP2/PP3B2/6PP/2RQ2K1 b - - bm Qxd8; id "ERET 060 - King Attack"; 4rrk1/pp4pp/3p4/3P3b/2PpPp1q/1Q5P/PB4B1/R4RK1 b - - bm Rf6; id "ERET 061 - King Attack"; rr1nb1k1/2q1b1pp/pn1p1p2/1p1PpNPP/4P3/1PP1BN2/2B2P2/R2QR1K1 w - - bm g6; id "ERET 062 - Stong Squares"; r3k2r/4qn2/p1p1b2p/6pB/P1p5/2P5/5PPP/RQ2R1K1 b kq - bm Kf8; id "ERET 063 - Defence"; 8/1pp5/p3k1pp/8/P1p2PPP/2P2K2/1P3R2/5r2 b - - am Rxf2; id "ERET 064 - Endgame"; 1r3rk1/2qbppbp/3p1np1/nP1P2B1/2p2P2/2N1P2P/1P1NB1P1/R2Q1RK1 b - - bm Qb6; id "ERET 065 - Zwischenzug"; 8/2pN1k2/p4p1p/Pn1R4/3b4/6Pp/1P3K1P/8 w - - bm Ke1; id "ERET 066 - Endgame"; 5r1k/1p4bp/3p1q2/1NpP1b2/1pP2p2/1Q5P/1P1KBP2/r2RN2R b - - bm f3; id "ERET 067 - Clearance"; r3kb1r/pbq2ppp/1pn1p3/2p1P3/1nP5/1P3NP1/PB1N1PBP/R2Q1RK1 w kq - bm a3; id "ERET 068 - Open Line"; 5rk1/n2qbpp1/pp2p1p1/3pP1P1/PP1P3P/2rNPN2/R7/1Q3RK1 w - - bm h5; id "ERET 069 - King Attack"; r5k1/1bqp1rpp/p1n1p3/1p4p1/1b2PP2/2NBB1P1/PPPQ4/2KR3R w - - bm a3; id "ERET 070 - Stong Squares"; 1r4k1/1nq3pp/pp1pp1r1/8/PPP2P2/6P1/5N1P/2RQR1K1 w - - bm f5; id "ERET 071 - Deflection"; q5k1/p2p2bp/1p1p2r1/2p1np2/6p1/1PP2PP1/P2PQ1KP/4R1NR b - - bm Qd5; id "ERET 072 - Centralization"; r4rk1/ppp2ppp/1nnb4/8/1P1P3q/PBN1B2P/4bPP1/R2QR1K1 w - - bm Qxe2; id "ERET 073 - Mobility"; 1r3k2/2N2pp1/1pR2n1p/4p3/8/1P1K1P2/P5PP/8 w - - bm Kc4; id "ERET 074 - Endgame"; 6r1/6r1/2p1k1pp/p1pbP2q/Pp1p1PpP/1P1P2NR/1KPQ3R/8 b - - bm Qf5; id "ERET 075 - Fortress"; r1b1kb1r/1p1npppp/p2p1n2/6B1/3NPP2/q1N5/P1PQ2PP/1R2KB1R w Kkq - bm Bxf6; id "ERET 076 - Development"; r3r1k1/1bq2ppp/p1p2n2/3ppPP1/4P3/1PbB4/PBP1Q2P/R4R1K w - - bm gxf6; id "ERET 077 - Attacking Castle"; r4rk1/ppq3pp/2p1Pn2/4p1Q1/8/2N5/PP4PP/2KR1R2 w - - bm Rxf6; id "ERET 078 - Passed Pawn"; r1bqr1k1/3n1ppp/p2p1b2/3N1PP1/1p1B1P2/1P6/1PP1Q2P/2KR2R1 w - - bm Qxe8; id "ERET 079 - Queen Sacrifice"; 5rk1/1ppbq1pp/3p3r/pP1PppbB/2P5/P1BP4/5PPP/3QRRK1 b - - bm Bc1; id "ERET 080 - Clearance"; r3r1kb/p2bp2p/1q1p1npB/5NQ1/2p1P1P1/2N2P2/PPP5/2KR3R w - - bm Bg7; id "ERET 081 - King Attack"; 8/3P4/1p3b1p/p7/P7/1P3NPP/4p1K1/3k4 w - - bm g4; id "ERET 082 - Endgame"; 3q1rk1/7p/rp1n4/p1pPbp2/P1P2pb1/1QN4P/1B2B1P1/1R3RK1 w - - bm Nb5; id "ERET 083 - Exchange"; 4r1k1/1r1np3/1pqp1ppB/p7/2b1P1PQ/2P2P2/P3B2R/3R2K1 w - - bm Bg7 Bg5; id "ERET 084 - King Attack"; r4rk1/q4bb1/p1R4p/3pN1p1/8/2N3P1/P4PP1/3QR1K1 w - - bm Ng4; id "ERET 085 - Exchange"; r3k2r/pp2pp1p/8/q2Pb3/2P5/4p3/B1Q2PPP/2R2RK1 w kq - bm c5; id "ERET 086 - Exchange Sacrifice"; r3r1k1/1bnq1pbn/p2p2p1/1p1P3p/2p1PP1B/P1N2B1P/1PQN2P1/3RR1K1 w - - bm e5; id "ERET 087 - Clearance"; 8/4k3/p2p2p1/P1pPn2p/1pP1P2P/1P1NK1P1/8/8 w - - bm g4; id "ERET 088 - Endgame"; 8/2P1P3/b1B2p2/1pPRp3/2k3P1/P4pK1/nP3p1p/N7 w - - bm e8N; id "ERET 089 - Underpromotion"; 4K1k1/8/1p5p/1Pp3b1/8/1P3P2/P1B2P2/8 w - - bm f4; id "ERET 090 - Endgame"; 8/6p1/3k4/3p1p1p/p2K1P1P/4P1P1/P7/8 b - - bm g6, Kc6; id "ERET 091 - Endgame"; r1b2rk1/ppp3p1/4p2p/4Qpq1/3P4/2PB4/PPK2PPP/R6R b - - am Qxg2; id "ERET 092 - Poisoned Pawn"; 2b1r3/r2ppN2/8/1p1p1k2/pP1P4/2P3R1/PP3PP1/2K5 w - - bm Nd6; id "ERET 093 - Endgame"; 2k2Br1/p6b/Pq1r4/1p2p1b1/1Ppp2p1/Q1P3N1/5RPP/R3N1K1 b - - bm Rf6; id "ERET 094 - Queen Sacrifice"; r2qk2r/ppp1b1pp/2n1p3/3pP1n1/3P2b1/2PB1NN1/PP4PP/R1BQK2R w KQkq - bm Nxg5; id "ERET 095 - Queen Sacrifice"; 8/8/4p1Pk/1rp1K1p1/4P1P1/1nP2Q2/p2b1P2/8 w - - bm Kf6; id "ERET 096 - Endgame"; 2k5/p7/Pp1p1b2/1P1P1p2/2P2P1p/3K3P/5B2/8 w - - bm c5; id "ERET 097 - Endgame"; 8/6pp/5k2/1p1r4/4R3/7P/5PP1/5K2 w - - am Ke2; id "ERET 098 - Endgame"; 3q1r1k/4RPp1/p6p/2pn4/2P5/1P6/P3Q2P/6K1 w - - bm Re8; id "ERET 099 - Endgame"; rn2k2r/3pbppp/p3p3/8/Nq1Nn3/4B1P1/PP3P1P/R2Q1RK1 w k - bm Nf5; id "ERET 100 - Initiative"; r1b1kb1N/pppnq1pB/8/3p4/3P4/8/PPPK1nPP/RNB1R3 b q - bm Ne5; id "ERET 101 - Development"; N4rk1/pp1b1ppp/n3p1n1/3pP1Q1/1P1N4/8/1PP2PPP/q1B1KB1R b K - bm Nxb4; id "ERET 102 - King Attack"; 4k1br/1K1p1n1r/2p2pN1/P2p1N2/2P3pP/5B2/P2P4/8 w - - bm Kc8; id "ERET 103 - Zugzwang"; r1bqkb1r/ppp3pp/2np4/3N1p2/3pnB2/5N2/PPP1QPPP/2KR1B1R b kq - bm Ne7; id "ERET 104 - Development"; r3kb1r/pbqp1pp1/1pn1pn1p/8/3PP3/2PB1N2/3N1PPP/R1BQR1K1 w kq - bm e5; id "ERET 105 - Stong Squares"; r2r2k1/pq2bppp/1np1bN2/1p2B1P1/5Q2/P4P2/1PP4P/2KR1B1R b - - bm Bxf6; id "ERET 106 - King Safety"; 1r1r2k1/2pq3p/4p3/2Q1Pp2/1PNn1R2/P5P1/5P1P/4R2K b - - bm Rb5; id "ERET 107 - Defence"; 8/5p1p/3P1k2/p1P2n2/3rp3/1B6/P4R2/6K1 w - - bm Ba4; id "ERET 108 - Endgame"; 2rbrnk1/1b3p2/p2pp3/1p4PQ/1PqBPP2/P1NR4/2P4P/5RK1 b - - bm Qxd4; id "ERET 109 - Relief"; 4r1k1/1bq2r1p/p2p1np1/3Pppb1/P1P5/1N3P2/1R2B1PP/1Q1R2BK w - - bm c5; id "ERET 110 - Passed Pawn"; 8/8/8/8/4kp2/1R6/P2q1PPK/8 w - - bm a3; id "ERET 111 - Fortress";

=Forum Posts=
 * Neuer Stellungstest: Der Eigenmann Rapid Engine Test (ERET) by Walter Eigenmann, [[Computer Chess Forums|CSS Forum], February 28, 2017 (German)
 * Der ERET-Stellungstest im Ranglisten-Vergleich by Walter Eigenmann, [[Computer Chess Forums|CSS Forum], March 20, 2017 (German)
 * Neue Ergebnisse im ERET-Stellungstest by Walter Eigenmann, [[Computer Chess Forums|CSS Forum], March 25, 2017 (German)
 * ERET-Test-Suite: New Results by Walter Eigenmann, CCC, October 17, 2018
 * New results in the ERET chess test by Walter Eigenmann, CCC, April 23, 2019
 * ERET test results: Leela-Chess the new Number One... by Walter Eigenmann, CCC, July 02, 2019

=External Links=
 * Computer Chess: Test Problems for Programs (ERET) - Glarean Magazin
 * eigenmann rapid engine test

=References= Up one Level