MESON Chess Problem Database
Problem Display
PID: 55411 (5RKN/8/5Bp1/2P1PBPb/4Pk2/3PpPR1/1rN4P/Q7 w - - 0 1)
Grinblat, Arieh
Variantim, 2004
#2
15 + 5
SOLUTION
- SOUND
- Sets
- 1...Bxf3
- 2.Sxg6#
- 1...Bg4
- 2.Sxg6#
- 1...e2
- 2.Qc1#
- 1...Bxf3
- Tries
- 1.Bh3?
- threat
- 2.Bg7#
- 1...Rb7
- 2.Be7#
- 1...Rb8
- 2.Bd8#
- 1...Bg4
- 2.Sxg6#
- 1...Rb6!
- threat
- 1.Bg4?
- 1...Rxc2
- 2.Be7#
- 2.Bd8#
- 1...Bxg4
- 2.Sxg6#
- 1...Rb1
- 2.Be7#
- 2.Bd8#
- 1...Ra2
- 2.Be7#
- 2.Bd8#
- 1...Rb3
- 2.Be7#
- 2.Bd8#
- 1...Rb4
- 2.Be7#
- 2.Bd8#
- 1...Rb5
- 2.Be7#
- 2.Bd8#
- 1...Rb7
- 2.Be7#
- 1...Rb8
- 2.Bd8#
- 1...e2
- 2.Qc1#
- 1...Rb6!
- 1...Rxc2
- 1.Bd7?
- threat
- 2.Bg7#
- 1...Rb8
- 2.Bd8#
- 1...Bg4
- 2.Sxg6#
- 1...Rb6!
- threat
- 1.Bc8?
- threat
- 2.Bg7#
- 1...Rb7
- 2.Be7#
- 1...Bg4
- 2.Sxg6#
- 1...Rb6!
- threat
- 1.Be7?
- 1...Kxe5
- 2.Bd6#
- 1...Rxc2
- 2.Bh3#
- 2.Bg4#
- 2.Be6#
- 2.Bxg6#
- 2.Bd7#
- 2.Bc8#
- 1...Bxf3
- 2.Sxg6#
- 1...gxf5
- 2.Rxf5#
- 1...Rb6
- 2.Be6#
- 1...Rb1
- 2.Bh3#
- 2.Bg4#
- 2.Be6#
- 2.Bxg6#
- 2.Bd7#
- 2.Bc8#
- 1...Ra2
- 2.Bh3#
- 2.Bg4#
- 2.Be6#
- 2.Bxg6#
- 2.Bd7#
- 2.Bc8#
- 1...Rb3
- 2.Bh3#
- 2.Bg4#
- 2.Be6#
- 2.Bxg6#
- 2.Bd7#
- 2.Bc8#
- 1...Rb4
- 2.Bh3#
- 2.Bg4#
- 2.Be6#
- 2.Bxg6#
- 2.Bd7#
- 2.Bc8#
- 1...Rb5
- 2.Bh3#
- 2.Bg4#
- 2.Be6#
- 2.Bxg6#
- 2.Bd7#
- 2.Bc8#
- 1...Rb7
- 2.Bh3#
- 2.Bg4#
- 2.Be6#
- 2.Bxg6#
- 2.Bd7#
- 2.Bc8#
- 1...Rb8
- 2.Bc8#
- 1...Bg4
- 2.Sxg6#
- 1...e2!
- 1...Kxe5
- 1.Bg7?
- threat
- 2.Bh3#
- 2.Be6#
- 2.Bxg6#
- 2.Bd7#
- 2.Bc8#
- 1...gxf5
- 2.Rxf5#
- 1...Rb6
- 2.Be6#
- 1...Rb7
- 2.Bd7#
- 1...Rb8
- 2.Bc8#
- 1...Bg4!
- threat
- 1.Bd8?
- 1...Kxe5
- 2.Bc7#
- 1...Rxc2
- 2.Bh3#
- 2.Bg4#
- 2.Be6#
- 2.Bxg6#
- 2.Bd7#
- 2.Bc8#
- 1...Bxf3
- 2.Sxg6#
- 1...gxf5
- 2.Rxf5#
- 1...Rb6
- 2.Be6#
- 1...Rb1
- 2.Bh3#
- 2.Bg4#
- 2.Be6#
- 2.Bxg6#
- 2.Bd7#
- 2.Bc8#
- 1...Ra2
- 2.Bh3#
- 2.Bg4#
- 2.Be6#
- 2.Bxg6#
- 2.Bd7#
- 2.Bc8#
- 1...Rb3
- 2.Bh3#
- 2.Bg4#
- 2.Be6#
- 2.Bxg6#
- 2.Bd7#
- 2.Bc8#
- 1...Rb4
- 2.Bh3#
- 2.Bg4#
- 2.Be6#
- 2.Bxg6#
- 2.Bd7#
- 2.Bc8#
- 1...Rb5
- 2.Bh3#
- 2.Bg4#
- 2.Be6#
- 2.Bxg6#
- 2.Bd7#
- 2.Bc8#
- 1...Rb7
- 2.Bd7#
- 1...Rb8
- 2.Bh3#
- 2.Bg4#
- 2.Be6#
- 2.Bxg6#
- 2.Bd7#
- 2.Bc8#
- 1...Bg4
- 2.Sxg6#
- 1...e2!
- 1...Kxe5
- 1.Rg4+?
- 1...Kxf3
- 2.Qf1#
- 1...Bxg4!
- 1...Kxf3
- 1.Qxb2?
- 1...Bxf3
- 2.Sxg6#
- 1...Bg4
- 2.Sxg6#
- 1...e2
- 2.Qc1#
- 1...gxf5!
- 1...Bxf3
- 1.Qe1?
- threat
- 2.Qxe3#
- 1...e2
- 2.Qd2#
- 2.Qc1#
- 1...Rxc2!
- threat
- 1.Qg1?
- threat
- 2.Qxe3#
- 1...e2
- 2.Qe3#
- 2.Qc1#
- 1...Rxc2!
- threat
- 1.e6?
- 1...Rxc2
- 2.Be5#
- 2.Qe5#
- 1...Bxf3
- 2.Sxg6#
- 1...Rb6
- 2.Be5#
- 2.Qe5#
- 1...Rb1
- 2.Be5#
- 2.Qe5#
- 1...Ra2
- 2.Be5#
- 2.Qe5#
- 1...Rb3
- 2.Be5#
- 2.Qe5#
- 1...Rb4
- 2.Be5#
- 2.Qe5#
- 1...Rb5
- 2.Be5#
- 2.Qe5#
- 1...Rb7
- 2.Be5#
- 2.Qe5#
- 1...Rb8
- 2.Be5#
- 2.Qe5#
- 1...Bg4
- 2.Sxg6#
- 1...e2
- 2.Qc1#
- 1...gxf5!
- 1...Rxc2
- 1.Bh3?
- Keys
- 1.Be6!
- threat
- 2.Bg7#
- 1...Rb7
- 2.Be7#
- 1...Rb8
- 2.Bd8#
- 1...Bg4
- 2.Sxg6#
- threat
- 1.Be6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- B(d);N_GUARD,XP(E)::S(O),XP(e)
- B(d);N_GUARD::S(O),XP(e)
- P(b);OGATEB::QAB(A)
- Tries
- Try
- B(J);
- Threat
- R(M)+B(L)
- Vars
- R(a);::R(M)+B(L)
- R(a);P_PINR(M)::R(M)+B(L)
- B(d);N_GUARD::S(O),XP(e)
- Refutation
- R(a);
- Try
- B(J);
- Vars
- B(d);N_GUARD,XB(J)::S(O),XP(e)
- R(a);::R(M)+B(L)
- R(a);P_PINR(M)::R(M)+B(L)
- P(b);OGATEB::QAB(A)
- Refutation
- R(a);
- Try
- B(J);
- Threat
- R(M)+B(L)
- Vars
- R(a);P_PINR(M)::R(M)+B(L)
- B(d);N_GUARD::S(O),XP(e)
- Refutation
- R(a);
- Try
- B(J);
- Threat
- R(M)+B(L)
- Vars
- R(a);::R(M)+B(L)
- B(d);N_GUARD::S(O),XP(e)
- Refutation
- R(a);
- Try
- B(L);
- Vars
- K(c);OGATEB,P_SPINR(a),S_FLIGHT,XP(I)::B(L)
- B(d);N_GUARD,XP(E)::S(O),XP(e)
- P(e);OGATE,P_SPINP(e),XB(J)::R1(M),XP(e)
- R(a);::R(M)+B(J)
- R(a);P_PINR(M)::R(M)+B(J)
- B(d);N_GUARD::S(O),XP(e)
- Refutation
- P(b);
- Try
- B(L);
- Threat
- DUALS(5)
- Vars
- P(e);OGATE,P_SPINP(e),XB(J)::R1(M),XP(e)
- R(a);::R(M)+B(J)
- R(a);P_PINR(M)::R(M)+B(J)
- Refutation
- B(d);
- Try
- B(L);
- Vars
- K(c);OGATEB,P_SPINR(a),S_FLIGHT,XP(I)::B(L)
- B(d);N_GUARD,XP(E)::S(O),XP(e)
- P(e);OGATE,P_SPINP(e),XB(J)::R1(M),XP(e)
- R(a);::R(M)+B(J)
- B(d);N_GUARD::S(O),XP(e)
- Refutation
- P(b);
- Try
- R(F);CHECK
- Vars
- K(c);P-FLIGHT,XP(E)::QAR2(A)
- Refutation
- B(d);XR(F)
- Try
- Q(A);XR(a)
- Vars
- B(d);N_GUARD,XP(E)::S(O),XP(e)
- B(d);N_GUARD::S(O),XP(e)
- P(b);OGATEB::QAB(A)
- Refutation
- P(e);XB(J)
- Try
- Q(A);
- Threat
- QAB1(A),XP(b)
- Refutation
- R(a);XS(B)
- Try
- Q(A);
- Threat
- QAB1(A),XP(b)
- Refutation
- R(a);XS(B)
- Try
- P(I);
- Vars
- B(d);N_GUARD,XP(E)::S(O),XP(e)
- B(d);N_GUARD::S(O),XP(e)
- P(b);OGATEB::QAB(A)
- Refutation
- P(e);XB(J)
- Try
- Actual
- B(J);
- Threat
- R(M)+B(L)
- Vars
- R(a);::R(M)+B(L)
- R(a);P_PINR(M)::R(M)+B(L)
- B(d);N_GUARD::S(O),XP(e)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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