MESON Chess Problem Database
Problem Display
PID: 133915 (4R2K/b1pQ4/2p5/5NB1/R1PP4/n2k4/Np1P4/1n1B4 w - - 0 1)
Gulyaev, Aleksandr Pavlovich (aka Grin, AP)
The Field, 1962
(First published on Thu Oct 11 1962)
#2
11 + 7
SOLUTION
- SOUND
- Sets
- 1...Bxd4+
- 2.Qxd4#
- 1...Bc5
- 2.dxc5#
- 1...Sxd2
- 2.Re3#
- 1...Sc2
- 2.Be2#
- 1...Sxc4
- 2.Sb4#
- 1...c5
- 2.dxc5#
- 1...Bxd4+
- Tries
- 1.Bb3?
- threat
- 2.Sb4#
- 1...Bxd4+
- 2.Qxd4#
- 1...Sxd2
- 2.Re3#
- 1...Bc5
- 2.dxc5#
- 1...c5
- 2.dxc5#
- 1...Sc2!
- threat
- 1.Rxa3+?
- 1...Kxc4
- 2.Be2#
- 1...Sc3
- 2.Rxc3#
- 1...Sxa3!
- 1...Kxc4
- 1.Qxc6?
- threat
- 2.Sb4#
- 2.Qf3#
- 2.Qe4#
- 1...Sxd2
- 2.Re3#
- 1...Sxc4
- 2.Sb4#
- 2.Qe4#
- 2.Qxc4#
- 1...Bc5
- 2.Qf3#
- 2.Qe4#
- 1...Sc3
- 2.Sb4#
- 2.Qf3#
- 1...Sc2
- 2.Be2#
- 2.Qe4#
- 1...Bxd4+!
- threat
- 1.Qe6?
- threat
- 2.Sb4#
- 2.Qe2#
- 2.Qe3#
- 2.Qe4#
- 1...Sxd2
- 2.Qe2#
- 2.Qe3#
- 1...Sxc4
- 2.Sb4#
- 2.Qxc4#
- 2.Qe2#
- 2.Qe4#
- 1...Bc5
- 2.Qe2#
- 2.Qe3#
- 2.Qe4#
- 1...Sc3
- 2.Sb4#
- 2.Qe3#
- 1...Sc2
- 2.Be2#
- 2.Qe2#
- 2.Qe4#
- 1...c5
- 2.Qe2#
- 2.Qe3#
- 2.Qe4#
- 1...Bxd4+!
- threat
- 1.Qd5?
- threat
- 2.Sb4#
- 2.Qf3#
- 2.Qe4#
- 1...Bxd4+
- 2.Qxd4#
- 1...Sxd2
- 2.Re3#
- 1...Sxc4
- 2.Sb4#
- 2.Qxc4#
- 2.Qe4#
- 1...Bc5
- 2.Qf3#
- 2.Qe4#
- 1...Sc3
- 2.Sb4#
- 2.Qf3#
- 1...Sc2
- 2.Be2#
- 2.Qe4#
- 1...c5
- 2.Qf3#
- 2.Qe4#
- 2.dxc5#
- 1...cxd5!
- threat
- 1.Qd6?
- threat
- 2.Qg3#
- 1...Bxd4+
- 2.Qxd4#
- 1...Sxd2
- 2.Re3#
- 1...Sxc4
- 2.Sb4#
- 1...Sc2
- 2.Be2#
- 1...cxd6!
- threat
- 1.Qe7?
- threat
- 2.Qe2#
- 2.Qe3#
- 2.Qe4#
- 1...Sxd2
- 2.Qe2#
- 2.Qe3#
- 1...Sxc4
- 2.Sb4#
- 2.Qe2#
- 2.Qe4#
- 1...Sc3
- 2.Qe3#
- 1...Sc2
- 2.Be2#
- 2.Qe2#
- 2.Qe4#
- 1...Bxd4+!
- threat
- 1.Bb3?
- Keys
- 1.Qh7!
- threat
- 2.Qh3#
- 1...Bxd4+
- 2.Sg7#
- 1...Sxd2
- 2.Re3#
- 1...Sxc4
- 2.Sb4#
- 1...Sc2
- 2.Be2#
- threat
- 1.Qh7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- B(f);CHECK,OGATE,P_SPINB(f),XP(F)::QAR1(I),XB(f)
- B(f);OGATE::QAR(I)+P(F),XB(f)
- S(a);SBLOCK,XP(C)::R1(J)
- S(c);SBLOCK::B(A)
- S(c);SBLOCK,XP(E)::S(B)
- P(e);OGATE::QAR(I)+P(F),XP(e)
- Tries
- Try
- B(A);
- Threat
- S(B)
- Vars
- B(f);CHECK,OGATE,P_SPINB(f),XP(F)::QAR1(I),XB(f)
- S(a);SBLOCK,XP(C)::R1(J)
- B(f);OGATE::QAR(I)+P(F),XB(f)
- P(e);OGATE::QAR(I)+P(F),XP(e)
- Refutation
- S(c);
- Try
- R(D);CHECK,XS(c)
- Vars
- K(d);S_FLIGHT,XP(E)::B(A)
- S(a);N_GUARD,P_SPINS(a)::R1(D),XS(a)
- Refutation
- S(a);XR(D)
- Try
- Q(I);XP(e)
- Threat
- DUALS(3)
- Vars
- S(a);SBLOCK,XP(C)::R1(J)
- Refutation
- B(f);CHECK,XP(F)
- Try
- Q(I);
- Threat
- DUALS(4)
- Refutation
- B(f);CHECK,XP(F)
- Try
- Q(I);
- Threat
- DUALS(3)
- Vars
- B(f);CHECK,OGATE,P_SPINB(f),XP(F)::QAR1(I),XB(f)
- S(a);SBLOCK,XP(C)::R1(J)
- Refutation
- P(e);XQ(I)
- Try
- Q(I);
- Threat
- QAR(I)
- Vars
- B(f);CHECK,OGATE,P_SPINB(f),XP(F)::QAR1(I),XB(f)
- S(a);SBLOCK,XP(C)::R1(J)
- S(c);SBLOCK,XP(E)::S(B)
- S(c);SBLOCK::B(A)
- Refutation
- P(g);XQ(I)
- Try
- Q(I);
- Threat
- DUALS(3)
- Vars
- S(a);::QAR1(I)
- Refutation
- B(f);CHECK,XP(F)
- Try
- Actual
- Q(I);
- Threat
- QAR(I)
- Vars
- B(f);CHECK,SBLOCK,XP(F)::QAB(I)+S(G)
- S(a);SBLOCK,XP(C)::R1(J)
- S(c);SBLOCK,XP(E)::S(B)
- S(c);SBLOCK::B(A)
Developed and maintained by Brian Stephenson.
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CSS/Javascript (jQuery, Bootstrap & DataTables).