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Up Topic The Rybka Lounge / Test Positions / Hard puzzle.
- - By Lazy Frank (***) [gb] Date 2017-12-20 18:18 Edited 2017-12-20 19:29
r4rk1/ppqnbpp1/4p1n1/P2pP3/2pP1PBp/2Pb1R1P/1P1N2PN/R1BQ2K1 w - - 0 1


Rxd3 cxd3 Nb3

r4rk1/ppqnbpp1/4p1n1/P2pP3/3P1PBp/1NPp3P/1P4PN/R1BQ2K1 b - - 1 2


If b6, then f5

r4rk1/p1qnbpp1/1p2p1n1/P2pPP2/3P2Bp/1NPp3P/1P4PN/R1BQ2K1 b - - 0 3


If f5, then Bh5 Nh8 Qxd3

r4rkn/ppqnb1p1/4p3/P2pPp1B/3P1P1p/1NPQ3P/1P4PN/R1B3K1 b - - 0 4
Parent - By Lazy Frank (***) [gb] Date 2018-01-01 17:40
Dann analyse respond:
r4rkn/ppqnb1p1/4p3/P2pPp1B/3P1P1p/1NPQ3P/1P4PN/R1B3K1 b - - acd 47; acs 7200; bm Rfc8; ce -81; pm Rfc8; pv Rfc8;


Qf1 (playing against b-pawn)

r1r3kn/ppqnb1p1/4p3/P2pPp1B/3P1P1p/1NP4P/1P4PN/R1B2QK1 b - - 2 5
Parent - By Vinvin (***) [be] Date 2018-01-14 12:21
5 best moves with Stockfish_180113 on an i7 6*4GHz
2 top moves are close

Stockfish_180113_x64_modern:
...
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46/65  4:57:32  178 331 561k  9 989k  +0,70  1.b3 b5 2.b4 f5 3.Bh5 Nh8 4.Rf2 g6 5.Be2 Be4 6.Ndf3 Nf7 7.Be3 Kg7 8.Nd2 a6 9.Qe1 Rae8 10.Nhf3 Rh8 11.Rf1 Ref8 12.Kh2 Nb8 13.Kh1 Nd7 14.Rc1 Nb8 15.Qf2 Nc6 16.Kh2 Qd8 17.Rfd1 Re8 18.Ra1 Ref8 19.Rg1 Qc7 20.Qe1 Qd7 21.Ra2 Re8 22.Rf1 Qd8 23.Rb2 Ref8 24.Qc1 Rfg8 25.Rg1
46/50  4:57:32  178 331 561k  9 989k  +0,70  1.Kh1 f5 2.Bh5 Nh8 3.Re3 b5 4.b4 g6 5.Bf3 Kg7 6.Re1 Nf7 7.Be2 Be4 8.Rg1 Rae8 9.Nhf3 Qc6 10.Qe1 Rh8 11.Nf1 Qc7 12.Be3 a6 13.Qc1 Qd8 14.N1d2 Nb8 15.Bf2 Nc6 16.Kh2 Qc7 17.Qd1 Qd8 18.Qf1 Ref8 19.Be3 Qc7 20.Qe1 Qd8 21.Qf2 Qc7 22.Rac1 Ra8 23.Rgf1 Raf8 24.Rcd1 Qd7
46/65  4:57:32  178 331 561k  9 989k  +0,70  1.Ndf1 Be4 2.Rf2 f5 3.Bh5 Nh8 4.Be2 b5 5.Nd2 g6 6.Nhf1 Qc6 7.b4 Nf7 8.Nf3 Kg7 9.Be3 Qc7 10.N1d2 Rac8 11.Rf1 a6 12.Qe1 Rh8 13.Rc1 Qd8 14.Kh2 Nb8 15.Rg1 Qc7 16.Bf2 Qd8 17.Ra1 Nc6 18.Be3 Qc7 19.Qf2 Rcf8 20.Rac1 Qd7 21.Qe1 Re8 22.Ra1 Ref8 23.Rf1 Qd8 24.Qf2 Qd7 25.Rfe1 Rc8
46/55  4:57:32  178 331 561k  9 989k  +0,95  1.Bh5 b5 2.b4 Bd8 3.Qe1 a6 4.Bg4 Re8 5.Ndf1 Be4 6.Rf2 Rc8 7.Nd2 Bd3 8.Ndf3 Ndf8 9.Be3 Be7 10.Bh5 Qd7 11.Ng5 Rc7 12.Rb2 Qd8 13.Qf2 Bf5 14.Rf1 Rb7 15.Re1 Rc7 16.Qd2 Nh7 17.Nhf3 Nxg5 18.fxg5 Rf8 19.Bxg6 fxg6 20.Nxh4 Be4 21.Rf1 Rxf1+ 22.Kxf1 Rc8 23.Kg1 Qd7 24.Qd1 Rf8 25.Rf2 Rxf2
46/69  4:57:32  178 331 561k  9 989k  +1,01  1.Rxd3 cxd3 2.Nb3 f5 3.Bh5 Nh8 4.Qxd3 Rfc8 5.Qf1 b5 6.Qxb5 Rab8 7.Qa6 Qc6 8.Qxc6 Rxc6 9.Bd1 Rc7 10.Ra2 Nf7 11.Nf3 Kh7 12.Bc2 g6 13.Kh2 Kg7 14.a6 Kh6 15.Kg1 Kh5 16.Bd1 Kh6 17.Na5 g5 18.Nb7 Kg6 19.fxg5 Bxg5 20.Bxg5 Nxg5 21.Nxh4+ Kg7 22.Nf3 Ne4 23.Ne1 Nb6 24.Nd3 Nc4 25.Bf3 Kf7 26.Bxe4 fxe4 27.Ndc5 e3 28.b4 Nd2 29.Nd6+ Ke7 30.Ra1 Nc4 31.Ndb7 Rg8 32.b5
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47/67  6:09:05  221 535 967k  10 004k  +0,62  1.Ndf1 Be4 2.Rf2 f5 3.Bh5 Nh8 4.Be2 b5 5.Nd2 g6 6.Nhf1 Rf7 7.b3 Qc6 8.Ne3 Rh7 9.b4 Nf7 10.Ra2 Rf8 11.Nxe4 fxe4 12.Ng4 Qc8 13.Qe1 Rh8 14.Bd2 a6 15.Rf1 Nb8 16.Qc1 Nc6 17.Rc2 Kg7 18.Rb2 Qb7 19.Be3 Nb8 20.Rd2 Nc6 21.Rc2 Qc8 22.Qd2 Qd7 23.Qe1 Qc8 24.Qc1 Qb7 25.Rf2 Qc7 26.Rb2 Qd7
47/63  6:09:05  221 535 967k  10 004k  +0,70  1.b3 b5 2.b4 f5 3.Bh5 Nh8 4.Rf2 g6 5.Be2 Be4 6.Ndf3 Nf7 7.Be3 Kg7 8.Nd2 a6 9.Qe1 Rae8 10.Nhf3 Rh8 11.Rf1 Ref8 12.Kh2 Nb8 13.Kh1 Nc6 14.Rg1 Qd8 15.Kh2 Qd7 16.Qf1 Qd8 17.Qf2 Qc7 18.Rgf1 Rc8 19.Rad1 Qd8 20.Rc1 Qc7 21.Rfd1 Rcd8 22.Kh1 Rb8 23.Rg1 Qd8 24.Rgf1 Rc8 25.Rg1 Qc7
47/70  6:09:05  221 535 967k  10 004k  +0,76  1.Kh1 f5 2.Bh5 Nh8 3.Re3 b5 4.b4 g6 5.Be2 Be4 6.Nxe4 fxe4 7.g3 Rf7 8.Qg1 Rh7 9.Bd2 Rf8 10.Rf1 hxg3 11.Rxg3 Kf7 12.Be3 Qc6 13.Qg2 Ke8 14.Rxg6 Nxg6 15.Qxg6+ Rff7 16.Bh5 Nf8 17.Qg4 Kd8 18.Bxf7 Rxf7 19.f5 exf5 20.Rxf5 Rxf5 21.Qxf5 Qe6 22.Qh5 Kd7 23.Kg2 Ng6 24.Ng4 Nh4+ 25.Kf2 Qf5+ 26.Qxf5+ Nxf5 27.Bf4 Ke6 28.Ne3 Bh4+ 29.Ke2 Nxe3 30.Kxe3
47/62  6:09:05  221 535 967k  10 004k  +0,95  1.Bh5 b5 2.b4 Bd8 3.Qe1 Kh7 4.Ndf1 Be4 5.Rf2 Ne7 6.Nd2 Bd3 7.Nhf3 Nf5 8.Ng5+ Kg8 9.Ndf3 g6 10.Bg4 Re8 11.Bxf5 exf5 12.Nxh4 Rc8 13.Rb2 Nf6 14.Be3 Ne4 15.Nxe4 Bxe4 16.Qg3 Kg7 17.Nf3 Be7 18.Ng5 Bd3 19.Bf2 Rh8 20.Re1 Rce8 21.Qf3 Qd8 22.Qe3 a6 23.Nf3 Be4 24.Bg3 Bd3 25.Qf2 Be4
47/67  6:09:05  221 535 967k  10 004k  +1,06  1.Rxd3 cxd3 2.Nb3 f5 3.Bh5 Nh8 4.Qxd3 Nb8 5.Qd1 Nc6 6.Be2 Ng6 7.Be3 Rab8 8.Bh5 Nh8 9.Bf2 b6 10.a6 Na5 11.Nc1 Qc6 12.Qe1 Nc4 13.Ra2 Rbc8 14.Nf1 Nxb2 15.Rxb2 Qxc3 16.Qxc3 Rxc3 17.Ne2 Rc7 18.Ne3 Rfc8 19.Bf3 Ng6 20.Rb5 Kf8 21.Kh2 Kf7 22.Nxf5 exf5 23.Bxd5+ Kf8 24.Bb7 Rc2 25.Bxc8 Rxe2 26.Bxf5
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47/67  8:01:33  288 562 224k  9 987k  +0,62  1.Ndf1 Be4 2.Rf2 f5 3.Bh5 Nh8 4.Be2 b5 5.Nd2 g6 6.Nhf1 Rf7 7.b3 Qc6 8.Ne3 Rh7 9.b4 Nf7 10.Ra2 Rf8 11.Nxe4 fxe4 12.Ng4 Qc8 13.Qe1 Rh8 14.Bd2 a6 15.Rf1 Nb8 16.Qc1 Nc6 17.Rc2 Kg7 18.Rb2 Qb7 19.Be3 Nb8 20.Rd2 Nc6 21.Rc2 Qc8 22.Qd2 Qd7 23.Qe1 Qc8 24.Qc1 Qb7 25.Rf2 Qc7 26.Rb2 Qd7
47/59  8:01:33  288 562 224k  9 987k  +0,76  1.Kh1 f5
48/59  8:01:33  288 562 224k  9 987k  +0,62  1.b3 b5 2.b4 f5 3.Bh5 Nh8 4.Rf2 g6 5.Be2 Be4 6.Qe1 Nf7 7.Nhf3 Kg7 8.Nf1 Nb8 9.Be3 Nc6 10.N1d2 Qd8 11.Rf1 Rh8 12.Qf2 a6 13.Kh2 Rc8 14.Rfc1 Nb8 15.Rg1 Rh6 16.Rad1 Bc2 17.Rc1 Be4 18.Ne1 Nc6 19.Ra1 Qd7 20.Nef3 Rhh8 21.Rac1 Rh6 22.Rgf1 Qd8 23.Kg1 Rh8 24.Rcd1 Rc7 25.Qe1 Rc8
48/68  8:01:33  288 562 224k  9 987k  +0,95  1.Bh5 b5 2.b4 Bd8 3.Qe1 Kh7 4.Ndf1 Be4 5.Rf2 Ne7 6.Nd2 Bd3 7.Nhf3 Nf5 8.Ng5+ Kg8 9.Ndf3 g6 10.Bg4 Re8 11.Bxf5 exf5 12.Nxh4 Nf6 13.Rb2 Ne4 14.Nxe4 Bxe4 15.Qg3 Kg7 16.Nf3 Be7 17.Ng5 Bd3 18.Be3 Rh8 19.Bf2 Rac8 20.Re1 Rce8 21.Qe3 Qc8 22.Bg3 f6 23.Nf3 Be4 24.Ra2 Kf7 25.Rae2 Kg7 26.Rf1
48/70  8:01:33  288 562 224k  9 987k  +1,05  1.Rxd3 cxd3 2.Nb3 f5 3.Bh5 Nh8 4.Qxd3 Rfc8 5.Qf1 b5 6.Qxb5 Rab8 7.Qa6 Qc6 8.Qxc6 Rxc6 9.Bd1 Rc7 10.Ra2 Nf7 11.Nf3 Kh7 12.Bc2 g6 13.Kf1 Kg7 14.a6 Nb6 15.Nc5 Bxc5 16.dxc5 Rxc5 17.Be3 Rc7 18.Bf2 g5 19.fxg5 Nd8 20.Bd3 Kg6 21.Be3 Nc4 22.Bxc4 dxc4 23.Nxh4+ Kg7 24.Nf3 Nc6 25.h4 Kg6 26.Ra4 Ne7 27.Nd4 Rb6 28.Kf2 Kh5 29.Kg3 Ng6 30.Nxf5 Rxb2 31.Nd4
- By Lazy Frank (***) [gb] Date 2017-12-29 15:41
One more ... not so hard, but nice one!

8/Q4ppk/1p3q2/5Pp1/8/P7/1PB5/1K6 w - -
Up Topic The Rybka Lounge / Test Positions / Hard puzzle.

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