MESON Chess Problem Database
Problem Display
PID: 258572 (2R5/4k1K1/3n1N2/2q2p2/1R1Q4/B6B/8/8 w - - 0 1)
Pierce, William Timbrell
English Mechanic and World of Science, 1895
(First published on Fri Sep 6 1895)
#2
7 + 4
| 15239 | Valois Notebooks | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qxb4
- 2.Qe5#
- 1...Qb6
- 2.Qe5#
- 1...Qa7
- 2.Qe5#
- 1...Qc1
- 2.Qe5#
- 1...Qc2
- 2.Qe5#
- 1...Qe5
- 2.Qxe5#
- 1...Qc6
- 2.Qe5#
- 1...Qc7
- 2.Qe5#
- 1...Sc4
- 2.Re8#
- 2.Qd7#
- 1...Se4
- 2.Re8#
- 2.Qd7#
- 1...Sb5
- 2.Re8#
- 2.Qd7#
- 1...Sb7
- 2.Re8#
- 2.Qd7#
- 1...Sf7
- 2.Re8#
- 2.Qd7#
- 1...Sxc8
- 2.Qd7#
- 1...Se8+
- 2.Rxe8#
- 1...f4
- 2.Sg8#
- 1...Qxb4
- Tries
- 1.Rb1?
- 1...Se8+
- 2.Rxe8#
- 1...Qxa3
- 2.Qe5#
- 1...Qxd4
- 2.Re8#
- 1...Qxc8
- 2.Qxd6#
- 1...Sxc8
- 2.Re1#
- 2.Qd7#
- 1...Qb4
- 2.Qe5#
- 1...Qb6
- 2.Re1#
- 2.Re8#
- 2.Qe5#
- 1...Qa7
- 2.Re1#
- 2.Re8#
- 2.Qe5#
- 2.Qxd6#
- 1...Qc1
- 2.Re8#
- 2.Qe5#
- 2.Qxd6#
- 1...Qc2
- 2.Re8#
- 2.Qe5#
- 2.Qxd6#
- 1...Qc3
- 2.Re8#
- 2.Qxd6#
- 1...Qc4
- 2.Re8#
- 2.Qxd6#
- 1...Qa5
- 2.Re8#
- 2.Qxd6#
- 1...Qb5
- 2.Qxd6#
- 1...Qd5
- 2.Re8#
- 1...Qe5
- 2.Re8#
- 2.Qxe5#
- 1...Qc6
- 2.Qe5#
- 1...Qc7
- 2.Re1#
- 2.Re8#
- 2.Qe3#
- 2.Qe5#
- 1...Sc4
- 2.Re8#
- 2.Qd7#
- 1...Se4
- 2.Re8#
- 2.Qe5#
- 2.Qd7#
- 1...Sb5
- 2.Re1#
- 2.Re8#
- 2.Qe5#
- 2.Qd7#
- 1...Sb7
- 2.Re1#
- 2.Re8#
- 2.Qe5#
- 2.Qd7#
- 1...Sf7
- 2.Re8#
- 2.Qd7#
- 1...f4
- 2.Sg8#
- 1...Ke6!
- 1...Se8+
- 1.Rb2?
- 1...Se8+
- 2.Rxe8#
- 1...Qxa3
- 2.Qe5#
- 1...Qxd4
- 2.Re8#
- 1...Qxc8
- 2.Qxd6#
- 1...Sxc8
- 2.Re2#
- 2.Qd7#
- 1...Qb4
- 2.Qe5#
- 1...Qb6
- 2.Re2#
- 2.Re8#
- 2.Qe5#
- 1...Qa7
- 2.Re2#
- 2.Re8#
- 2.Qe5#
- 2.Qxd6#
- 1...Qc1
- 2.Re8#
- 2.Qe5#
- 2.Qxd6#
- 1...Qc2
- 2.Re8#
- 2.Qe5#
- 2.Qxd6#
- 1...Qc3
- 2.Re8#
- 2.Qxd6#
- 1...Qc4
- 2.Re8#
- 2.Qxd6#
- 1...Qa5
- 2.Re8#
- 2.Qxd6#
- 1...Qb5
- 2.Qxd6#
- 1...Qd5
- 2.Re8#
- 1...Qe5
- 2.Re8#
- 2.Qxe5#
- 1...Qc6
- 2.Qe5#
- 1...Qc7
- 2.Re2#
- 2.Re8#
- 2.Qe3#
- 2.Qe5#
- 1...Sc4
- 2.Re8#
- 2.Qd7#
- 1...Se4
- 2.Re8#
- 2.Qe5#
- 2.Qd7#
- 1...Sb5
- 2.Re2#
- 2.Re8#
- 2.Qe5#
- 2.Qd7#
- 1...Sb7
- 2.Re2#
- 2.Re8#
- 2.Qe5#
- 2.Qd7#
- 1...Sf7
- 2.Re8#
- 2.Qd7#
- 1...f4
- 2.Sg8#
- 1...Ke6!
- 1...Se8+
- 1.Rb3?
- 1...Se8+
- 2.Rxe8#
- 1...Qxa3
- 2.Qe5#
- 1...Qxd4
- 2.Re8#
- 1...Qxc8
- 2.Qxd6#
- 1...Sxc8
- 2.Re3#
- 2.Qd7#
- 1...Qb4
- 2.Qe5#
- 1...Qb6
- 2.Re3#
- 2.Re8#
- 2.Qe5#
- 1...Qa7
- 2.Re3#
- 2.Re8#
- 2.Qe5#
- 2.Qxd6#
- 1...Qc1
- 2.Re8#
- 2.Qe5#
- 2.Qxd6#
- 1...Qc2
- 2.Re8#
- 2.Qe5#
- 2.Qxd6#
- 1...Qc3
- 2.Re8#
- 2.Qxd6#
- 1...Qc4
- 2.Re8#
- 2.Qxd6#
- 1...Qa5
- 2.Re8#
- 2.Qxd6#
- 1...Qb5
- 2.Qxd6#
- 1...Qd5
- 2.Re8#
- 1...Qe5
- 2.Re8#
- 2.Qxe5#
- 1...Qc6
- 2.Qe5#
- 1...Qc7
- 2.Re3#
- 2.Re8#
- 2.Qe3#
- 2.Qe5#
- 1...Sc4
- 2.Re8#
- 2.Qd7#
- 1...Se4
- 2.Re8#
- 2.Qe5#
- 2.Qd7#
- 1...Sb5
- 2.Re3#
- 2.Re8#
- 2.Qe5#
- 2.Qd7#
- 1...Sb7
- 2.Re3#
- 2.Re8#
- 2.Qe5#
- 2.Qd7#
- 1...Sf7
- 2.Re8#
- 2.Qd7#
- 1...f4
- 2.Sg8#
- 1...Ke6!
- 1...Se8+
- 1.Ra4?
- 1...Se8+
- 2.Rxe8#
- 1...Qxa3
- 2.Qe5#
- 1...Qxd4
- 2.Re8#
- 1...Qxc8
- 2.Qxd6#
- 1...Sxc8
- 2.Qd7#
- 1...Qb4
- 2.Qe5#
- 1...Qb6
- 2.Re8#
- 2.Qe5#
- 1...Qa7
- 2.Re8#
- 2.Qe5#
- 2.Qxd6#
- 1...Qc1
- 2.Re8#
- 2.Qe5#
- 2.Qxd6#
- 1...Qc2
- 2.Re8#
- 2.Qe5#
- 2.Qxd6#
- 1...Qc3
- 2.Re8#
- 2.Qxd6#
- 1...Qc4
- 2.Re8#
- 2.Qxd6#
- 1...Qa5
- 2.Re8#
- 2.Qxd6#
- 1...Qb5
- 2.Qxd6#
- 1...Qd5
- 2.Re8#
- 1...Qe5
- 2.Re8#
- 2.Qxe5#
- 1...Qc6
- 2.Qe5#
- 1...Qc7
- 2.Re8#
- 2.Qe3#
- 2.Qe5#
- 1...Sc4
- 2.Re8#
- 2.Qd7#
- 1...Se4
- 2.Re8#
- 2.Qe5#
- 2.Qd7#
- 1...Sb5
- 2.Re8#
- 2.Qe5#
- 2.Qd7#
- 1...Sb7
- 2.Re8#
- 2.Qe5#
- 2.Qd7#
- 1...Sf7
- 2.Re8#
- 2.Qd7#
- 1...f4
- 2.Sg8#
- 1...Ke6!
- 1...Se8+
- 1.Rc4?
- 1...Se8+
- 2.Rxe8#
- 1...Qxa3
- 2.Qe5#
- 1...Qxd4
- 2.Re8#
- 1...Qxc4
- 2.Re8#
- 2.Qxd6#
- 1...Qxc8
- 2.Qxd6#
- 1...Sxc4
- 2.Re8#
- 2.Qd7#
- 1...Sxc8
- 2.Qd7#
- 1...Qb4
- 2.Qe5#
- 1...Qb6
- 2.Re8#
- 2.Qe5#
- 1...Qa7
- 2.Re8#
- 2.Qe5#
- 2.Qxd6#
- 1...Qa5
- 2.Re8#
- 2.Qxd6#
- 1...Qb5
- 2.Qxd6#
- 1...Qd5
- 2.Re8#
- 1...Qe5
- 2.Re8#
- 2.Qxe5#
- 1...Qc6
- 2.Qe5#
- 1...Qc7
- 2.Re8#
- 2.Qe3#
- 2.Qe5#
- 1...Se4
- 2.Re8#
- 2.Qe5#
- 2.Qd7#
- 1...Sb5
- 2.Re8#
- 2.Qe5#
- 2.Qd7#
- 1...Sb7
- 2.Re8#
- 2.Qe5#
- 2.Qd7#
- 1...Sf7
- 2.Re8#
- 2.Qd7#
- 1...f4
- 2.Sg8#
- 1...Ke6!
- 1...Se8+
- 1.Rb5?
- 1...Se8+
- 2.Rxe8#
- 1...Qxa3
- 2.Re5#
- 2.Qe5#
- 1...Qxd4
- 2.Re8#
- 1...Qxb5
- 2.Qxd6#
- 1...Qxc8
- 2.Qxd6#
- 1...Sxb5
- 2.Re8#
- 2.Qe5#
- 2.Qd7#
- 1...Sxc8
- 2.Qd7#
- 1...Qb4
- 2.Re5#
- 2.Qe5#
- 1...Qb6
- 2.Re5#
- 2.Re8#
- 2.Qe5#
- 1...Qa7
- 2.Re5#
- 2.Re8#
- 2.Qe5#
- 2.Qxd6#
- 1...Qc1
- 2.Re5#
- 2.Re8#
- 2.Qe5#
- 2.Qxd6#
- 1...Qc2
- 2.Re5#
- 2.Re8#
- 2.Qe5#
- 2.Qxd6#
- 1...Qc3
- 2.Re5#
- 2.Re8#
- 2.Qxd6#
- 1...Qc4
- 2.Re8#
- 2.Qxd6#
- 1...Qd5
- 2.Re8#
- 1...Qe5
- 2.Rxe5#
- 2.Re8#
- 2.Qxe5#
- 1...Qc6
- 2.Re5#
- 2.Qe5#
- 1...Qc7
- 2.Re5#
- 2.Re8#
- 2.Qe3#
- 2.Qe5#
- 1...Sc4
- 2.Re8#
- 2.Qd7#
- 1...Se4
- 2.Re8#
- 2.Qe5#
- 2.Qd7#
- 1...Sb7
- 2.Re8#
- 2.Qe5#
- 2.Qd7#
- 1...Sf7
- 2.Re8#
- 2.Qd7#
- 1...f4
- 2.Sg8#
- 1...Ke6!
- 1...Se8+
- 1.Rb7+?
- 1...Qc7
- 2.Re8#
- 2.Qe3#
- 2.Qe5#
- 2.Qxd6#
- 1...Sxb7
- 2.Re8#
- 2.Qe5#
- 2.Qd7#
- 1...Ke6!
- 1...Qc7
- 1.Rbb8?
- 1...Se8+
- 2.Rxe8#
- 1...Qxa3
- 2.Qe5#
- 1...Qxd4
- 2.Re8#
- 1...Qxc8
- 2.Qxd6#
- 1...Sxc8
- 2.Qd7#
- 1...Qb4
- 2.Qe5#
- 1...Qb6
- 2.Re8#
- 2.Qe5#
- 1...Qa7
- 2.Re8#
- 2.Qe5#
- 2.Qxd6#
- 1...Qc1
- 2.Re8#
- 2.Qe5#
- 2.Qxd6#
- 1...Qc2
- 2.Re8#
- 2.Qe5#
- 2.Qxd6#
- 1...Qc3
- 2.Re8#
- 2.Qxd6#
- 1...Qc4
- 2.Re8#
- 2.Qxd6#
- 1...Qa5
- 2.Re8#
- 2.Qxd6#
- 1...Qb5
- 2.Qxd6#
- 1...Qd5
- 2.Re8#
- 1...Qe5
- 2.Re8#
- 2.Qxe5#
- 1...Qc6
- 2.Qe5#
- 1...Qc7
- 2.Re8#
- 2.Qe3#
- 2.Qe5#
- 1...Sc4
- 2.Re8#
- 2.Qd7#
- 1...Se4
- 2.Re8#
- 2.Qe5#
- 2.Qd7#
- 1...Sb5
- 2.Re8#
- 2.Qe5#
- 2.Qd7#
- 1...Sb7
- 2.Re8#
- 2.Qe5#
- 2.Qd7#
- 1...Sf7
- 2.Re8#
- 2.Qd7#
- 1...f4
- 2.Sg8#
- 1...Ke6!
- 1...Se8+
- 1.Qe4+?
- 1...Qe5
- 2.Qxe5#
- 1...fxe4
- 2.Sg8#
- 1...Sxe4!
- 1...Qe5
- 1.Qxd6+?
- 1...Qxd6
- 2.Re8#
- 1...Kxd6!
- 1...Qxd6
- 1.Rb1?
- Keys
- 1.Rb6!
- 1...Se8+
- 2.Rxe8#
- 1...Ke6
- 2.Re8#
- 1...Qxa3
- 2.Qe5#
- 1...Qxd4
- 2.Re8#
- 1...Qxb6
- 2.Re8#
- 2.Qe5#
- 1...Qxc8
- 2.Qxd6#
- 1...Sxc8
- 2.Qd7#
- 1...Qb4
- 2.Qe5#
- 1...Qc1
- 2.Re8#
- 2.Qe5#
- 2.Qxd6#
- 1...Qc2
- 2.Re8#
- 2.Qe5#
- 2.Qxd6#
- 1...Qc3
- 2.Re8#
- 2.Qxd6#
- 1...Qc4
- 2.Re8#
- 2.Qxd6#
- 1...Qa5
- 2.Re8#
- 2.Qxd6#
- 1...Qb5
- 2.Qxd6#
- 1...Qd5
- 2.Re8#
- 1...Qe5
- 2.Re8#
- 2.Qxe5#
- 1...Qc6
- 2.Qe5#
- 1...Qc7
- 2.Re8#
- 2.Qe3#
- 2.Qe5#
- 1...Sc4
- 2.Sg8#
- 2.Rc7#
- 2.Re8#
- 2.Qd7#
- 2.Qd8#
- 1...Se4
- 2.Sg8#
- 2.Rc7#
- 2.Re8#
- 2.Qe5#
- 2.Qd7#
- 2.Qd8#
- 1...Sb5
- 2.Sg8#
- 2.Re8#
- 2.Qe3#
- 2.Qe5#
- 2.Qd7#
- 2.Qd8#
- 1...Sb7
- 2.Sg8#
- 2.Rc7#
- 2.Re8#
- 2.Qe3#
- 2.Qe5#
- 2.Qd7#
- 1...Sf7
- 2.Sg8#
- 2.Rc7#
- 2.Re8#
- 2.Qd7#
- 1...f4
- 2.Sg8#
- 1...Se8+
- 1.Rb6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 6
- Sets
- Q(a);N_GUARD,XR(C)::QAR2(D)
- Q(a);N_GUARD::QAR2(D)
- Q(a);N_GUARD,P_PINS(E)::QAR2(D),XQ(a)
- S(c);OGATE,XR(G)::QAR1(D)
- S(c);CHECK,N_GUARD::R1(G),XS(c)
- P(b);::S(E)
- Tries
- Try
- R(C);
- Vars
- S(c);CHECK,N_GUARD,P_SPINQ(a)::R1(G),XS(c)
- Q(a);N_GUARD,XB(A)::QAR2(D)
- Q(a);P_PINS(E),P_SPINS(c),XQ(D)::R1(G)
- Q(a);N_GUARD,P_SPINS(c),XR(G)::QAB1(D),XS(c)
- Q(a);N_GUARD::QAR2(D)
- Q(a);N_GUARD,P_SPINS(c)::QAB1(D),XS(c)
- Q(a);P_SPINS(c)::R1(G)
- Q(a);N_GUARD,P_SPINS(c)::QAR2(D)
- P(b);::S(E)
- Refutation
- K(d);P-FLIGHT,P_SPINP(b)
- Try
- R(C);
- Vars
- S(c);CHECK,N_GUARD,P_SPINQ(a)::R1(G),XS(c)
- Q(a);N_GUARD,XB(A)::QAR2(D)
- Q(a);P_PINS(E),P_SPINS(c),XQ(D)::R1(G)
- Q(a);N_GUARD,P_SPINS(c),XR(G)::QAB1(D),XS(c)
- Q(a);N_GUARD::QAR2(D)
- Q(a);N_GUARD,P_SPINS(c)::QAB1(D),XS(c)
- Q(a);P_SPINS(c)::R1(G)
- Q(a);N_GUARD,P_SPINS(c)::QAR2(D)
- P(b);::S(E)
- Refutation
- K(d);P-FLIGHT,P_SPINP(b)
- Try
- R(C);
- Vars
- S(c);CHECK,N_GUARD,P_SPINQ(a)::R1(G),XS(c)
- Q(a);N_GUARD,XB(A)::QAR2(D)
- Q(a);P_PINS(E),P_SPINS(c),XQ(D)::R1(G)
- Q(a);N_GUARD,P_SPINS(c),XR(G)::QAB1(D),XS(c)
- Q(a);N_GUARD::QAR2(D)
- Q(a);N_GUARD,P_SPINS(c)::QAB1(D),XS(c)
- Q(a);P_SPINS(c)::R1(G)
- Q(a);N_GUARD,P_SPINS(c)::QAR2(D)
- P(b);::S(E)
- Refutation
- K(d);P-FLIGHT,P_SPINP(b)
- Try
- R(C);
- Vars
- S(c);CHECK,N_GUARD,P_SPINQ(a)::R1(G),XS(c)
- Q(a);N_GUARD,XB(A)::QAR2(D)
- Q(a);P_PINS(E),P_SPINS(c),XQ(D)::R1(G)
- Q(a);N_GUARD,P_SPINS(c),XR(G)::QAB1(D),XS(c)
- S(c);OGATE,P_SPINQ(a),XR(G)::QAR1(D)
- Q(a);N_GUARD::QAR2(D)
- Q(a);N_GUARD,P_SPINS(c)::QAB1(D),XS(c)
- Q(a);P_SPINS(c)::R1(G)
- Q(a);N_GUARD,P_SPINS(c)::QAR2(D)
- P(b);::S(E)
- Refutation
- K(d);P-FLIGHT,P_SPINP(b)
- Try
- R(C);
- Vars
- S(c);CHECK,N_GUARD,P_SPINQ(a)::R1(G),XS(c)
- Q(a);N_GUARD,XB(A)::QAR2(D)
- Q(a);P_PINS(E),P_SPINS(c),XQ(D)::R1(G)
- Q(a);N_GUARD,P_SPINS(c),XR(G)::QAB1(D),XS(c)
- S(c);OGATE,P_SPINQ(a),XR(G)::QAR1(D)
- Q(a);N_GUARD::QAR2(D)
- Q(a);N_GUARD,P_SPINS(c)::QAB1(D),XS(c)
- Q(a);P_SPINS(c)::R1(G)
- Q(a);N_GUARD,P_SPINS(c)::QAR2(D)
- P(b);::S(E)
- Refutation
- K(d);P-FLIGHT,P_SPINP(b)
- Try
- R(C);
- Vars
- S(c);CHECK,N_GUARD,P_SPINQ(a)::R1(G),XS(c)
- Q(a);P_PINS(E),P_SPINS(c),XQ(D)::R1(G)
- Q(a);N_GUARD,P_SPINS(c),XR(C)::QAB1(D),XS(c)
- Q(a);N_GUARD,P_SPINS(c),XR(G)::QAB1(D),XS(c)
- S(c);OGATE,P_SPINQ(a),XR(G)::QAR1(D)
- Q(a);P_SPINS(c)::R1(G)
- P(b);::S(E)
- Refutation
- K(d);P-FLIGHT,P_SPINP(b)
- Try
- R(C);CHECK
- Refutation
- K(d);P-FLIGHT,P_SPINP(b)
- Try
- R(C);
- Vars
- S(c);CHECK,N_GUARD,P_SPINQ(a)::R1(G),XS(c)
- Q(a);N_GUARD,XB(A)::QAR2(D)
- Q(a);P_PINS(E),P_SPINS(c),XQ(D)::R1(G)
- Q(a);N_GUARD,P_SPINS(c),XR(G)::QAB1(D),XS(c)
- S(c);OGATE,P_SPINQ(a),XR(G)::QAR1(D)
- Q(a);N_GUARD::QAR2(D)
- Q(a);N_GUARD,P_SPINS(c)::QAB1(D),XS(c)
- Q(a);P_SPINS(c)::R1(G)
- Q(a);N_GUARD,P_SPINS(c)::QAR2(D)
- P(b);::S(E)
- Refutation
- K(d);P-FLIGHT,P_SPINP(b)
- Try
- Q(D);CHECK
- Vars
- Q(a);N_GUARD,P_PINS(E),P_SPINQ(a)::QAR2(D),XQ(a)
- P(b);XQ(D)::S(E)
- Refutation
- S(c);XQ(D)
- Try
- Q(D);CHECK,XS(c)
- Vars
- Q(a);SBLOCK,XQ(D)::R1(G)
- Refutation
- K(d);S_FLIGHT,XQ(D)
- Try
- Actual
- R(C);
- Vars
- S(c);CHECK,N_GUARD,P_SPINQ(a)::R1(G),XS(c)
- K(d);P-FLIGHT,P_SPINP(b),P_SPINS(c)::R(G)
- Q(a);N_GUARD,XB(A)::QAR2(D)
- Q(a);P_PINS(E),P_SPINS(c),XQ(D)::R1(G)
- Q(a);N_GUARD,P_SPINS(c),XR(G)::QAB1(D),XS(c)
- S(c);OGATE,P_SPINQ(a),XR(G)::QAR1(D)
- Q(a);N_GUARD::QAR2(D)
- Q(a);N_GUARD,P_SPINS(c)::QAB1(D),XS(c)
- Q(a);P_SPINS(c)::R1(G)
- Q(a);N_GUARD,P_SPINS(c)::QAR2(D)
- P(b);::S(E)
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).