MESON Chess Problem Database
Problem Display
PID: 177775 (6Q1/K2R4/n1pN4/2kP4/2P2r2/P7/5N2/BR3b2 w - - 0 1)
Kotlyar, Valery
6th HM., Sahs (Latvia), 1988
#2
10 + 5
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rf3
- 2.Sfe4#
- 1...Rxc4
- 2.Sb7#
- 1...Re4
- 2.Sfxe4#
- 1...Rf5
- 2.Sfe4#
- 1...Rf6
- 2.Sfe4#
- 1...Rf7
- 2.Sfe4#
- 1...Rf8
- 2.Sfe4#
- 1...Bg2
- 2.Sd3#
- 1...Bd3
- 2.Sxd3#
- 1...Bh3
- 2.Sd3#
- 1...Bxc4
- 2.Sb7#
- 1...Sb4
- 2.axb4#
- 1...cxd5
- 2.Qxd5#
- 1...Rf3
- Tries
- 1.Rb4?
- threat
- 2.Sb7#
- 1...cxd5
- 2.Qxd5#
- 1...Sxb4!
- threat
- 1.Rb6?
- threat
- 2.Rxc6#
- 1...cxd5
- 2.Qxd5#
- 1...Sb4
- 2.axb4#
- 1...Sb8!
- threat
- 1.Qg1?
- threat
- 2.Sd3#
- 2.Sfe4#
- 1...Rxf2
- 2.Qxf2#
- 1...Rxc4
- 2.Sb7#
- 1...Bxc4
- 2.Sb7#
- 1...Rd4
- 2.Sfe4#
- 1...Re4
- 2.Sd3#
- 2.Sfxe4#
- 1...Bd3
- 2.Sxd3#
- 2.Sfe4#
- 1...cxd5!
- threat
- 1.Qa8?
- threat
- 2.Qxc6#
- 1...cxd5
- 2.Rb5#
- 2.Qxd5#
- 1...Sb4
- 2.axb4#
- 1...Sb8!
- threat
- 1.Qb8?
- threat
- 2.Qb6#
- 1...Rxc4
- 2.Sb7#
- 1...Bxc4
- 2.Sb7#
- 1...Sxb8!
- threat
- 1.Qc8?
- threat
- 2.Rb5#
- 2.Qxc6#
- 1...Bxc4
- 2.Sb7#
- 2.Qxc6#
- 1...Sb4
- 2.axb4#
- 1...Sb8
- 2.Rb5#
- 1...Sc7!
- threat
- 1.Qd8?
- threat
- 2.Qa5#
- 2.Qb6#
- 1...Rxc4
- 2.Sb7#
- 2.Qa5#
- 1...Bxc4
- 2.Sb7#
- 1...cxd5
- 2.Qb6#
- 1...Sc7!
- threat
- 1.Rb4?
- Keys
- 1.Rc1!
- threat
- 2.Sb7#
- 1...Rxc4
- 2.Sfe4#
- 1...Bxc4
- 2.Sd3#
- 1...cxd5
- 2.Qxd5#
- threat
- 1.Rc1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 10
- Sets
- R(b);N_GUARD::S(C)
- R(b);SBLOCK,XP(E)::S(G)
- R(b);N_GUARD::S(C),XR(b)
- R(b);N_GUARD,P_PINR(I)::S(C)
- B(a);N_GUARD::S(C)
- B(a);N_GUARD::S(C),XB(a)
- B(a);SBLOCK,XP(E)::S(G)
- S(d);OGATE::P(D),XS(d)
- P(e);OGATE,XP(F)::QAR1(J),XP(e)
- Tries
- Try
- R(B);
- Threat
- S(G)
- Vars
- P(e);OGATE,XP(F)::QAR1(J),XP(e)
- Refutation
- S(d);XR(B)
- Try
- R(B);
- Threat
- R1(B),XP(e)
- Vars
- P(e);OGATE,XP(F)::QAR1(J),XP(e)
- S(d);OGATE::P(D),XS(d)
- Refutation
- S(d);
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- R(b);OGATE,P_SPINR(b),XS(C)::QAB(J),XR(b)
- R(b);SBLOCK,XP(E)::S(G)
- B(a);SBLOCK,XP(E)::S(G)
- R(b);::S(C)
- Refutation
- P(e);XP(F)
- Try
- Q(J);
- Threat
- QAR1(J),XP(e)
- Vars
- S(d);OGATE::P(D),XS(d)
- Refutation
- S(d);
- Try
- Q(J);
- Threat
- QAB1(J)
- Vars
- R(b);SBLOCK,XP(E)::S(G)
- B(a);SBLOCK,XP(E)::S(G)
- Refutation
- S(d);XQ(J)
- Try
- Q(J);P_PINP(e)
- Threat
- DUALS(2)
- Vars
- S(d);OGATE::P(D),XS(d)
- S(d);::R1(B)
- Refutation
- S(d);N_SPINP(e)
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- B(a);SBLOCK,XP(E)::S(G)
- P(e);XP(F)::QAB1(J)
- Refutation
- S(d);
- Try
- Actual
- R(B);
- Threat
- S(G)
- Vars
- R(b);N_GUARD,P_SPINR(b),XP(E)::S(C)
- B(a);N_GUARD,P_SPINB(a),XP(E)::S(C)
- P(e);OGATE,XP(F)::QAR1(J),XP(e)
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