MESON Chess Problem Database
Problem Display
PID: 42915 (1q3B2/1pp1rBp1/1p1NR1P1/Rr1k4/P7/5N2/2Q4K/5b2 w - - 0 1)
Rice, John Michael
British Chess Magazine, 1973
#2
10 + 9
| 5174 | Chess Problem Spectrum | 2003 |
| 56 | The Problemist | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Rc5
- 2.Qe4#
- 1...Rd7
- 2.Re5#
- 1...Rxf7
- 2.Re5#
- 1...Re8
- 2.Re5#
- 2.Rxe8#
- 1...Bg2
- 2.Qc4#
- 1...Bh3
- 2.Qc4#
- 1...Bc4
- 2.Qxc4#
- 1...cxd6
- 2.Re5#
- 2.Rxe7#
- 1...c5
- 2.Qe4#
- 1...c6
- 2.Qf5#
- 1...Rc5
- Tries
- 1.Se4?
- threat
- 2.Re5#
- 2.Rd6#
- 2.Rxe7#
- 1...c5+
- 2.Rd6#
- 1...c6+
- 2.Re5#
- 2.Rd6#
- 1...Qxf8
- 2.Re5#
- 2.Rd6#
- 1...Rxf7
- 2.Re5#
- 1...Qc8
- 2.Re5#
- 2.Rd6#
- 1...Qe8
- 2.Re5#
- 2.Rd6#
- 1...Rc5
- 2.Rd6#
- 1...Rd7
- 2.Re5#
- 2.Rd6#
- 2.Re7#
- 1...Re8
- 2.Re5#
- 2.Rd6#
- 2.Re7#
- 2.Rxe8#
- 1...Bd3
- 2.Re5#
- 2.Rxe7#
- 2.Qxd3#
- 1...Bh3
- 2.Re5#
- 2.Rd6#
- 2.Qb3#
- 2.Qd3#
- 2.Qa2#
- 1...Bc4
- 2.Rd6#
- 1...Rxe6!
- threat
- 1.Sxb5?
- threat
- 2.Sxc7#
- 2.Re5#
- 2.Rd6#
- 2.Rxe7#
- 1...c5+
- 2.Rd6#
- 1...c6+
- 2.Sc7#
- 2.Re5#
- 2.Rd6#
- 1...Qxf8
- 2.Sxc7#
- 2.Re5#
- 2.Rd6#
- 1...Rxe6
- 2.Sxc7#
- 1...Rxf7
- 2.Sxc7#
- 2.Re5#
- 2.Qe4#
- 1...bxa5
- 2.Re5#
- 2.Rd6#
- 2.Rxe7#
- 1...Bc4
- 2.Sc3#
- 2.Sxc7#
- 2.Qf5#
- 1...Qc8
- 2.Sxc7#
- 2.Re5#
- 2.Rd6#
- 1...Qe8
- 2.Sxc7#
- 2.Re5#
- 2.Rd6#
- 1...Rd7
- 2.Sxc7#
- 2.Re5#
- 2.Rd6#
- 2.Re7#
- 2.Qe4#
- 1...Re8
- 2.Sxc7#
- 2.Re5#
- 2.Rd6#
- 2.Re7#
- 2.Rxe8#
- 2.Qe4#
- 1...Bd3
- 2.Sxc7#
- 2.Re5#
- 2.Rxe7#
- 1...Bh3
- 2.Sxc7#
- 2.Re5#
- 2.Rd6#
- 1...Bxb5!
- threat
- 1.Sf5?
- threat
- 2.Se3#
- 2.Sxe7#
- 2.Re5#
- 2.Rd6#
- 2.Rxe7#
- 1...c5+
- 2.Rd6#
- 1...c6+
- 2.Re5#
- 2.Rd6#
- 1...Qxf8
- 2.Se3#
- 2.Re5#
- 2.Rd6#
- 1...Rxe6
- 2.Se3#
- 1...Rxf7
- 2.Re5#
- 2.Qe4#
- 1...Qc8
- 2.Se3#
- 2.Sxe7#
- 2.Re5#
- 2.Rd6#
- 1...Qd8
- 2.Se3#
- 2.Re5#
- 2.Rd6#
- 2.Rxe7#
- 1...Qe8
- 2.Se3#
- 2.Re5#
- 2.Rd6#
- 1...Rc5
- 2.Se3#
- 2.Sxe7#
- 2.Rd6#
- 2.Qe4#
- 1...Rd7
- 2.Se3#
- 2.Re5#
- 2.Rd6#
- 2.Re7#
- 2.Qe4#
- 1...Re8
- 2.Se3#
- 2.Re5#
- 2.Rd6#
- 2.Re7#
- 2.Rxe8#
- 2.Qe4#
- 1...Bd3
- 2.Se3#
- 2.Sxe7#
- 2.Re5#
- 2.Rxe7#
- 1...Bc4!
- threat
- 1.Bxe7?
- threat
- 2.Re1#
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Re5#
- 2.Rf6#
- 1...Rc5
- 2.Qe4#
- 1...Bc4
- 2.Qxc4#
- 1...c5
- 2.Qe4#
- 1...Qc8
- 2.Re5#
- 1...Qe8
- 2.Re5#
- 1...Qf8
- 2.Re5#
- 1...Qg8
- 2.Re5#
- 1...Be2
- 2.Rxe2#
- 2.Re3#
- 2.Re4#
- 2.Re5#
- 2.Rf6#
- 1...Bh3
- 2.Re5#
- 2.Qc4#
- 1...Qh8+!
- threat
- 1.Rxb5+?
- 1...c5
- 2.Qe4#
- 1...Bxb5!
- 1...c5
- 1.Re1+?
- 1...Re6
- 2.Bxe6#
- 2.Re5#
- 1...Rxf7
- 2.Re5#
- 1...Kxd6!
- 1...Re6
- 1.Re2+?
- 1...Re6
- 2.Bxe6#
- 2.Re5#
- 2.Qc4#
- 1...Rxf7
- 2.Re5#
- 2.Qc4#
- 1...Kxd6!
- 1...Re6
- 1.Re3+?
- 1...Re6
- 2.Bxe6#
- 2.Re5#
- 1...Rxf7
- 2.Re5#
- 1...Kxd6!
- 1...Re6
- 1.Re4+?
- 1...Re6
- 2.Bxe6#
- 2.Rd4#
- 2.Re5#
- 1...Rxf7
- 2.Re5#
- 1...Kxd6!
- 1...Re6
- 1.Rf6+?
- 1...Re6
- 2.Bxe6#
- 2.Rf5#
- 1...Rxf7!
- 1...Re6
- 1.Qb3+?
- 1...Kc5
- 2.Se4#
- 1...Bc4
- 2.Qxc4#
- 1...Kc6!
- 1...Kc5
- 1.axb5?
- threat
- 2.Qf5#
- 1...Rxf7
- 2.Re5#
- 1...Bxb5
- 2.Qc4#
- 1...cxd6
- 2.Re5#
- 2.Rxe7#
- 1...Bh3
- 2.Qc4#
- 1...Bd3!
- threat
- 1.Se4?
- Keys
- 1.Sc4!
- threat
- 2.Se3#
- 1...c5+
- 2.Rd6#
- 1...c6+
- 2.Re5#
- 1...Kc5
- 2.Rxb5#
- 1...Rxf7
- 2.Qe4#
- 1...Bxc4
- 2.Qf5#
- threat
- 1.Sc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- R(b);::QAB1(A)
- R(g);::B(I)+R(G),DCHECK
- R(g);XB(I)::R1(G)
- B(a);N_GUARD::QAB1(A)
- B(a);N_GUARD::QAB1(A),XB(a)
- P(f);N_SPINR(b),P_PINS(F),SBLOCK::QAB1(A)
- P(f);P_PINS(F),SBLOCK::QAR2(A)
- Tries
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- P(f);CHECK,N_SPINR(b)::B(I)+R(G),DCHECK
- R(g);XB(I)::R1(G)
- R(b);::B(I)+R(G),DCHECK
- B(a);::B(I)+R(G),DCHECK
- Refutation
- R(g);XR(G)
- Try
- S(F);XR(b)
- Threat
- DUALS(4)
- Vars
- P(f);CHECK::B(I)+R(G),DCHECK
- R(g);P_SPINR(g),XR(G)::R(E)+S(F),DCHECK,XP(f)
- Refutation
- B(a);P_SPINB(a),XS(F)
- Try
- S(F);
- Threat
- DUALS(5)
- Vars
- P(f);CHECK,N_SPINR(b)::B(I)+R(G),DCHECK
- R(g);XR(G)::S(F)
- Refutation
- B(a);
- Try
- B(J);XR(g)
- Threat
- DUALS(6)
- Vars
- R(b);::QAB1(A)
- B(a);N_GUARD::QAB1(A),XB(a)
- P(f);N_SPINR(b),P_PINS(F),SBLOCK::QAB1(A)
- Q(i);::B(I)+R(G),DCHECK
- Refutation
- Q(i);CHECK
- Try
- R(E);CHECK,XR(b)
- Vars
- P(f);P_PINS(F),P_SPINP(f)::QAB1(A)
- Refutation
- B(a);XR(E)
- Try
- R(G);CHECK
- Vars
- R(g);XB(I)::R1(G)
- Refutation
- K(c);N_SPINR(b),P-FLIGHT,P_SPINR(g),XS(F)
- Try
- R(G);CHECK
- Refutation
- K(c);N_SPINR(b),P-FLIGHT,P_SPINR(g),XS(F)
- Try
- R(G);CHECK
- Vars
- R(g);XB(I)::R1(G)
- Refutation
- K(c);N_SPINR(b),P-FLIGHT,P_SPINR(g),XS(F)
- Try
- R(G);CHECK
- Vars
- R(g);XB(I)::R1(G)
- Refutation
- K(c);N_SPINR(b),P-FLIGHT,P_SPINR(g),XS(F)
- Try
- R(G);CHECK
- Refutation
- R(g);XB(I)
- Try
- Q(A);CHECK
- Vars
- K(c);P-FLIGHT::S(F)
- B(a);N_GUARD,P_SPINB(a)::QAB1(A),XB(a)
- Refutation
- K(c);N_SPINR(b),S_FLIGHT
- Try
- P(D);XR(b)
- Threat
- QAR2(A)
- Vars
- R(g);XB(I)::R1(G)
- B(a);N_GUARD,P_SPINB(a),XP(D)::QAB1(A)
- B(a);N_GUARD::QAB1(A)
- Refutation
- B(a);
- Try
- Actual
- S(F);
- Threat
- S(F)
- Vars
- P(f);CHECK,N_SPINR(b),SBLOCK::B(I)+R(G),DCHECK
- P(f);CHECK,SBLOCK::B(I)+R(G),DCHECK
- K(c);P-FLIGHT::R1(E),XR(b)
- R(g);XB(I)::QAB1(A)
- B(a);SBLOCK,XS(F)::QAR2(A)
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