MESON Chess Problem Database
Problem Display
PID: 8064 (6b1/2Np1kpP/K2B1pp1/3R2P1/2R5/p6q/B7/8 w - - 0 1)
Rice, John Michael
Chess Problems for Solving, 1995
#2
8 + 8
| 4640 | Chess Wizardry: The New ABC of Chess Problems | 1996 |
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.h8S#
- 1...Qg2
- 2.h8S#
- 1...Qg4
- 2.h8S#
- 1...Qf5
- 2.h8S#
- 1...Qe6
- 2.h8S#
- 1...Qb3
- 2.h8S#
- 1...Qc3
- 2.h8S#
- 1...Qd3
- 2.h8S#
- 1...Qe3
- 2.h8S#
- 1...Qf3
- 2.h8S#
- 1...Qg3
- 2.h8S#
- 1...Qf1
- Tries
- 1.Rc3?
- threat
- 2.Rf5#
- 1...Qf1+
- 2.Rdd3#
- 1...Qd3+
- 2.Rdxd3#
- 1...Qxc3
- 2.h8S#
- 1...Qg2
- 2.h8S#
- 1...Qg4
- 2.h8S#
- 1...Qf5
- 2.Rxf5#
- 2.h8S#
- 1...Qe6
- 2.h8S#
- 1...Qh2
- 2.Rd2#
- 1...Qe3
- 2.Re5#
- 2.h8S#
- 1...Qf3
- 2.h8S#
- 1...Qh4
- 2.Rd4#
- 1...f5
- 2.Rd1#
- 2.Rd2#
- 2.Rdd3#
- 2.Rd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rdc5#
- 2.Re5#
- 2.Rxf5#
- 1...Qh1!
- threat
- 1.Re4?
- 1...Qf1+
- 2.Rd3#
- 1...Qd3+
- 2.Rxd3#
- 1...Qxh7
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Rdd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rde5#
- 2.Rf5#
- 1...fxg5
- 2.Rf5#
- 1...Qh1
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Rdd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rde5#
- 2.Rf5#
- 1...Qg2
- 2.Rd2#
- 2.h8S#
- 1...Qg4
- 2.Rf5#
- 2.h8S#
- 1...Qf5
- 2.Rxf5#
- 2.h8S#
- 1...Qe6
- 2.h8S#
- 1...Qh2
- 2.Rd2#
- 1...Qb3
- 2.h8S#
- 1...Qc3
- 2.h8S#
- 1...Qe3
- 2.Rd3#
- 2.h8S#
- 1...Qf3
- 2.Rd3#
- 2.h8S#
- 1...Qg3
- 2.Rd3#
- 2.h8S#
- 1...Qh4
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Rdd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rde5#
- 2.Rf5#
- 1...Qh5
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Rdd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rde5#
- 2.Rf5#
- 1...Qh6
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Rdd4#
- 2.Ra5#
- 2.Rb5#
- 2.Rc5#
- 2.Rde5#
- 2.Rf5#
- 1...f5
- 2.Rd3#
- 2.Rxf5#
- 1...Bxh7!
- 1...Qf1+
- 1.Rg4?
- threat
- 2.Rd3#
- 1...Qd3+
- 2.Rxd3#
- 1...Qxg4
- 2.h8S#
- 1...fxg5
- 2.Rf5#
- 1...Qg2
- 2.h8S#
- 1...Qh2
- 2.Rd2#
- 1...Qb3
- 2.h8S#
- 1...Qc3
- 2.h8S#
- 1...Qe3
- 2.h8S#
- 1...Qf3
- 2.h8S#
- 1...Qh1!
- threat
- 1.Rh4?
- threat
- 2.h8S#
- 1...Qf1+
- 2.Rd3#
- 1...Qd3+
- 2.Rxd3#
- 1...Qxh4
- 2.Rd4#
- 1...fxg5
- 2.Rf5#
- 1...Bxh7!
- threat
- 1.Rd1?
- 1...Qxh7
- 2.Rcc1#
- 2.Rc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rb4#
- 2.Rcd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rc5#
- 2.Rc6#
- 1...fxg5
- 2.Rf4#
- 1...Qh1
- 2.Re4#
- 1...Qf1
- 2.h8S#
- 1...Qg2
- 2.h8S#
- 1...Qg4
- 2.Rxg4#
- 2.h8S#
- 1...Qf5
- 2.h8S#
- 1...Qe6
- 2.h8S#
- 1...Qh2
- 2.Rc2#
- 1...Qb3
- 2.h8S#
- 1...Qc3
- 2.Rxc3#
- 2.h8S#
- 1...Qd3
- 2.h8S#
- 1...Qe3
- 2.h8S#
- 1...Qf3
- 2.h8S#
- 1...Qg3
- 2.Rc3#
- 2.h8S#
- 1...Qh4
- 2.Rcd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rxh4#
- 1...Qh5
- 2.Rcc1#
- 2.Rc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rb4#
- 2.Rcd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rc5#
- 2.Rc6#
- 1...Qh6
- 2.Rcc1#
- 2.Rc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rb4#
- 2.Rcd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rc5#
- 2.Rc6#
- 1...f5
- 2.Rc3#
- 1...Bxh7!
- 1...Qxh7
- 1.Rd2?
- 1...Qxh7
- 2.Rc1#
- 2.Rcc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rb4#
- 2.Rcd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rc5#
- 2.Rc6#
- 1...fxg5
- 2.Rf4#
- 1...Qh1
- 2.Re4#
- 1...Qf1
- 2.h8S#
- 1...Qg2
- 2.Re4#
- 2.h8S#
- 1...Qg4
- 2.Rxg4#
- 2.h8S#
- 1...Qf5
- 2.h8S#
- 1...Qe6
- 2.h8S#
- 1...Qh2
- 2.Rc1#
- 2.Rcc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rb4#
- 2.Rcd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rc5#
- 2.Rc6#
- 1...Qb3
- 2.h8S#
- 1...Qc3
- 2.Rxc3#
- 2.h8S#
- 1...Qd3
- 2.h8S#
- 1...Qe3
- 2.h8S#
- 1...Qf3
- 2.h8S#
- 1...Qg3
- 2.Rc3#
- 2.h8S#
- 1...Qh4
- 2.Rcd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rxh4#
- 1...Qh5
- 2.Rc1#
- 2.Rcc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rb4#
- 2.Rcd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rc5#
- 2.Rc6#
- 1...Qh6
- 2.Rc1#
- 2.Rcc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rb4#
- 2.Rcd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rc5#
- 2.Rc6#
- 1...f5
- 2.Rc3#
- 1...Bxh7!
- 1...Qxh7
- 1.Ra5?
- 1...Qxh7
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rca4#
- 2.Rb4#
- 2.Rd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rcc5#
- 2.Rc6#
- 1...fxg5
- 2.Rf4#
- 1...Qh1
- 2.Re4#
- 1...Qf1
- 2.h8S#
- 1...Qg2
- 2.h8S#
- 1...Qg4
- 2.Rxg4#
- 2.h8S#
- 1...Qf5
- 2.h8S#
- 1...Qe6
- 2.h8S#
- 1...Qh2
- 2.Rc2#
- 1...Qb3
- 2.h8S#
- 1...Qc3
- 2.Rxc3#
- 2.h8S#
- 1...Qd3
- 2.h8S#
- 1...Qe3
- 2.h8S#
- 1...Qf3
- 2.h8S#
- 1...Qg3
- 2.Rc3#
- 2.h8S#
- 1...Qh4
- 2.Rd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rxh4#
- 1...Qh5
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rca4#
- 2.Rb4#
- 2.Rd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rcc5#
- 2.Rc6#
- 1...Qh6
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rca4#
- 2.Rb4#
- 2.Rd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rcc5#
- 2.Rc6#
- 1...f5
- 2.Rc3#
- 1...Bxh7!
- 1...Qxh7
- 1.Rb5?
- 1...Qxh7
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rcb4#
- 2.Rd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rcc5#
- 2.Rc6#
- 1...fxg5
- 2.Rf4#
- 1...Qh1
- 2.Re4#
- 1...Qf1
- 2.h8S#
- 1...Qg2
- 2.h8S#
- 1...Qg4
- 2.Rxg4#
- 2.h8S#
- 1...Qf5
- 2.h8S#
- 1...Qe6
- 2.h8S#
- 1...Qh2
- 2.Rc2#
- 1...Qb3
- 2.h8S#
- 1...Qc3
- 2.Rxc3#
- 2.h8S#
- 1...Qd3
- 2.h8S#
- 1...Qe3
- 2.h8S#
- 1...Qf3
- 2.h8S#
- 1...Qg3
- 2.Rc3#
- 2.h8S#
- 1...Qh4
- 2.Rd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rxh4#
- 1...Qh5
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rcb4#
- 2.Rd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rcc5#
- 2.Rc6#
- 1...Qh6
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rcb4#
- 2.Rd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rcc5#
- 2.Rc6#
- 1...f5
- 2.Rc3#
- 1...Bxh7!
- 1...Qxh7
- 1.Rdc5?
- 1...Qxh7
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rb4#
- 2.Rd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 1...fxg5
- 2.Rf4#
- 1...Qh1
- 2.Re4#
- 1...Qf1
- 2.h8S#
- 1...Qg2
- 2.h8S#
- 1...Qg4
- 2.Rxg4#
- 2.h8S#
- 1...Qf5
- 2.h8S#
- 1...Qe6
- 2.h8S#
- 1...Qh2
- 2.Rc2#
- 1...Qb3
- 2.h8S#
- 1...Qc3
- 2.Rxc3#
- 2.h8S#
- 1...Qd3
- 2.h8S#
- 1...Qe3
- 2.h8S#
- 1...Qf3
- 2.h8S#
- 1...Qg3
- 2.Rc3#
- 2.h8S#
- 1...Qh4
- 2.Rd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rxh4#
- 1...Qh5
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rb4#
- 2.Rd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 1...Qh6
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rb4#
- 2.Rd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 1...f5
- 2.Rc3#
- 1...Bxh7!
- 1...Qxh7
- 1.Re5?
- 1...Qxh7
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rb4#
- 2.Rd4#
- 2.Rce4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rcc5#
- 2.Rc6#
- 1...fxe5
- 2.Rf4#
- 1...fxg5
- 2.Rf4#
- 1...Qh1
- 2.Rce4#
- 1...Qf1
- 2.h8S#
- 1...Qg2
- 2.h8S#
- 1...Qg4
- 2.Rxg4#
- 2.h8S#
- 1...Qf5
- 2.h8S#
- 1...Qe6
- 2.h8S#
- 1...Qh2
- 2.Rc2#
- 1...Qb3
- 2.h8S#
- 1...Qc3
- 2.Rxc3#
- 2.h8S#
- 1...Qd3
- 2.h8S#
- 1...Qe3
- 2.Rc3#
- 2.h8S#
- 1...Qf3
- 2.h8S#
- 1...Qg3
- 2.Rc3#
- 2.h8S#
- 1...Qh4
- 2.Rd4#
- 2.Rce4#
- 2.Rf4#
- 2.Rg4#
- 2.Rxh4#
- 1...Qh5
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rb4#
- 2.Rd4#
- 2.Rce4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rcc5#
- 2.Rc6#
- 1...Qh6
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rb4#
- 2.Rd4#
- 2.Rce4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rcc5#
- 2.Rc6#
- 1...f5
- 2.Rc3#
- 1...Bxh7!
- 1...Qxh7
- 1.Rf5?
- threat
- 2.Rc3#
- 1...Qxf5
- 2.h8S#
- 1...Qh1
- 2.Re4#
- 1...Qf1
- 2.h8S#
- 1...Qg2
- 2.h8S#
- 1...Qg4
- 2.Rd4#
- 2.Re4#
- 2.Rcf4#
- 2.Rxg4#
- 2.h8S#
- 1...Qh2
- 2.Rc2#
- 1...Qb3
- 2.h8S#
- 1...Qc3
- 2.Rxc3#
- 2.h8S#
- 1...Qd3
- 2.h8S#
- 1...Qe3
- 2.h8S#
- 1...Qf3
- 2.h8S#
- 1...Qh4
- 2.Rd4#
- 2.Re4#
- 2.Rcf4#
- 2.Rg4#
- 2.Rxh4#
- 1...gxf5!
- threat
- 1.Rc3?
- Keys
- 1.Rd3!
- threat
- 2.Rg4#
- 1...Qxd3
- 2.h8S#
- 1...fxg5
- 2.Rf4#
- 1...Qh1
- 2.Re4#
- 1...Qg2
- 2.h8S#
- 1...Qg4
- 2.Rxg4#
- 2.h8S#
- 1...Qf5
- 2.h8S#
- 1...Qe6
- 2.h8S#
- 1...Qh2
- 2.Rc2#
- 1...Qe3
- 2.Re4#
- 2.h8S#
- 1...Qf3
- 2.Re4#
- 2.h8S#
- threat
- 1.Rd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 7
- Sets
- Q(b);N_GUARD,P_PINR(B)::P=S
- Q(b);N_GUARD::P=S
- Q(b);N_GUARD,P_PINB(F)::P=S
- Tries
- Try
- R(B);
- Threat
- B(A)+R(C)
- Vars
- Q(b);CHECK,N_GUARD::B(A)+R(C)
- Q(b);CHECK,N_GUARD::B(A)+R(C),XQ(b)
- Q(b);N_GUARD,XR(B)::P=S
- Q(b);N_GUARD::P=S
- Q(b);N_GUARD,P_PINB(F)::P=S
- Q(b);N_GUARD::B(A)+R(C)
- Refutation
- Q(b);
- Try
- R(B);
- Vars
- Q(b);CHECK,N_GUARD::B(A)+R(C)
- Q(b);CHECK,N_GUARD::B(A)+R(C),XQ(b)
- P(c);XP(D)::B(A)+R(C),DCHECK
- Q(b);N_GUARD,P_PINB(F)::P=S
- Q(b);N_GUARD::B(A)+R(C)
- Q(b);N_GUARD::P=S
- Refutation
- B(h);XP(H)
- Try
- R(B);
- Threat
- B(A)+R(C)
- Vars
- Q(b);CHECK::B(A)+R(C),XQ(b)
- Q(b);N_GUARD,XR(B)::P=S
- P(c);XP(D)::B(A)+R(C),DCHECK
- Q(b);N_GUARD::P=S
- Q(b);N_GUARD::B(A)+R(C)
- Refutation
- Q(b);
- Try
- R(B);
- Threat
- P=S
- Vars
- Q(b);CHECK,N_GUARD::B(A)+R(C)
- Q(b);CHECK,N_GUARD::B(A)+R(C),XQ(b)
- Q(b);N_GUARD,XR(B)::B(A)+R(C)
- P(c);XP(D)::B(A)+R(C),DCHECK
- Refutation
- B(h);XP(H)
- Try
- R(C);
- Vars
- P(c);XP(D)::B(A)+R(B),DCHECK
- Q(b);N_GUARD::B(A)+R(B)
- Q(b);N_GUARD,P_PINR(B)::P=S
- Q(b);N_GUARD::P=S
- Q(b);N_GUARD,P_PINB(F)::P=S
- P(c);S_CUTQ(b)::B(A)+R(B)
- Refutation
- B(h);XP(H)
- Try
- R(C);
- Vars
- P(c);XP(D)::B(A)+R(B),DCHECK
- Q(b);N_GUARD::B(A)+R(B)
- Q(b);N_GUARD,P_PINR(B)::P=S
- Q(b);N_GUARD::P=S
- Q(b);N_GUARD,P_PINB(F)::P=S
- P(c);S_CUTQ(b)::B(A)+R(B)
- Refutation
- B(h);XP(H)
- Try
- R(C);
- Vars
- P(c);XP(D)::B(A)+R(B),DCHECK
- Q(b);N_GUARD::B(A)+R(B)
- Q(b);N_GUARD,P_PINR(B)::P=S
- Q(b);N_GUARD::P=S
- Q(b);N_GUARD,P_PINB(F)::P=S
- P(c);S_CUTQ(b)::B(A)+R(B)
- Refutation
- B(h);XP(H)
- Try
- R(C);
- Vars
- P(c);XP(D)::B(A)+R(B),DCHECK
- Q(b);N_GUARD::B(A)+R(B)
- Q(b);N_GUARD::P=S
- Q(b);N_GUARD,P_PINB(F)::P=S
- P(c);S_CUTQ(b)::B(A)+R(B)
- Refutation
- B(h);XP(H)
- Try
- R(C);
- Vars
- P(c);XP(D)::B(A)+R(B),DCHECK
- Q(b);N_GUARD::B(A)+R(B)
- Q(b);N_GUARD,P_PINR(B)::P=S
- Q(b);N_GUARD::P=S
- Q(b);N_GUARD,P_PINB(F)::P=S
- P(c);S_CUTQ(b)::B(A)+R(B)
- Refutation
- B(h);XP(H)
- Try
- R(C);
- Vars
- P(c);XR(C)::B(A)+R(B),DCHECK
- P(c);XP(D)::B(A)+R(B),DCHECK
- Q(b);N_GUARD::B(A)+R(B)
- Q(b);N_GUARD,P_PINR(B)::P=S
- Q(b);N_GUARD::P=S
- Q(b);N_GUARD,P_PINB(F)::P=S
- P(c);S_CUTQ(b)::B(A)+R(B)
- Refutation
- B(h);XP(H)
- Try
- R(C);P_PINP(c)
- Threat
- B(A)+R(B)
- Vars
- Q(b);N_GUARD,N_SPINP(c),XR(C)::P=S
- Q(b);N_GUARD::B(A)+R(B)
- Q(b);N_GUARD,P_PINR(B)::P=S
- Q(b);N_GUARD::P=S
- Refutation
- P(d);N_SPINP(c),XR(C)
- Try
- Actual
- R(C);
- Threat
- B(A)+R(B)
- Vars
- Q(b);N_GUARD,P_PINR(B),XR(C)::P=S
- P(c);XP(D)::B(A)+R(B),DCHECK
- Q(b);N_GUARD::B(A)+R(B)
- Q(b);N_GUARD::P=S
- Q(b);N_GUARD,P_PINB(F)::P=S
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).