MESON Chess Problem Database
Problem Display
PID: 136420 (8/5R2/Kn6/1Q2Bp2/1p2k1pb/8/3P1PP1/1N1r3N w - - 0 1)
Williams, Philip Hamilton
The Field, 1918
(First published on Sat Aug 17 1918)
#2
9 + 7
SOLUTION
- SOUND
- Sets
- 1...Rxb1
- 2.d3#
- 1...Rc1
- 2.d3#
- 1...Re1
- 2.d3#
- 1...Rf1
- 2.d3#
- 1...Rg1
- 2.d3#
- 1...Rxh1
- 2.d3#
- 1...Rxd2
- 2.Sxd2#
- 1...Bxf2
- 2.Sxf2#
- 1...Bg3
- 2.Sxg3#
- 1...Bg5
- 2.Sg3#
- 1...Bf6
- 2.Sg3#
- 1...Be7
- 2.Sg3#
- 1...Bd8
- 2.Sg3#
- 1...b3
- 2.Sc3#
- 1...g3
- 2.f3#
- 1...f4
- 2.Rxf4#
- 1...Rxb1
- Tries
- 1.Kxb6?
- 1...Bxf2+
- 2.Sxf2#
- 1...Rxb1
- 2.d3#
- 1...Rxh1
- 2.d3#
- 1...Rxd2
- 2.Sxd2#
- 1...Rc1
- 2.d3#
- 1...Re1
- 2.d3#
- 1...Rf1
- 2.d3#
- 1...Rg1
- 2.d3#
- 1...Bg3
- 2.Sxg3#
- 1...Bg5
- 2.Sg3#
- 1...Bf6
- 2.Sg3#
- 1...Be7
- 2.Sg3#
- 1...b3
- 2.Sc3#
- 1...g3
- 2.f3#
- 1...f4
- 2.Rxf4#
- 1...Bd8+!
- 1...Bxf2+
- 1.Ba1?
- threat
- 2.Qxf5#
- 1...Kf4
- 2.Qxf5#
- 1...Sd5
- 2.Qc4#
- 1...f4
- 2.Qf5#
- 1...Bf6!
- threat
- 1.Bb2?
- threat
- 2.Qxf5#
- 1...Kf4
- 2.Qxf5#
- 1...Sd5
- 2.Qc4#
- 1...f4
- 2.Qf5#
- 1...Bf6!
- threat
- 1.Bg7?
- threat
- 2.Qxf5#
- 1...Kf4
- 2.Qxf5#
- 1...Sd5
- 2.Qc4#
- 1...f4
- 2.Qf5#
- 1...Bf6!
- threat
- 1.Bh8?
- threat
- 2.Qxf5#
- 1...Kf4
- 2.Qxf5#
- 1...Sd5
- 2.Qc4#
- 1...f4
- 2.Qf5#
- 1...Bf6!
- threat
- 1.Kxb6?
- Keys
- 1.Re7!
- 1...Rxb1
- 2.d3#
- 1...Rxh1
- 2.d3#
- 1...Rxd2
- 2.Sxd2#
- 1...Bxf2
- 2.Sxf2#
- 1...Bxe7
- 2.Sg3#
- 1...Sc4
- 2.Qxc4#
- 1...f4
- 2.Bf6#
- 1...Bf6
- 2.Sg3#
- 1...Rc1
- 2.d3#
- 1...Re1
- 2.d3#
- 1...Rf1
- 2.d3#
- 1...Rg1
- 2.d3#
- 1...Bg3
- 2.Sxg3#
- 1...Bg5
- 2.Sg3#
- 1...Sa4
- 2.Qc4#
- 1...Sd5
- 2.Qc4#
- 1...Sd7
- 2.Qc4#
- 1...Sa8
- 2.Qc4#
- 1...Sc8
- 2.Qc4#
- 1...b3
- 2.Sc3#
- 1...g3
- 2.f3#
- 1...Rxb1
- 1.Re7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 6
- REMOVED MATES = 1
- Sets
- R(a);N_GUARD,XS(A)::P(C)
- R(a);N_GUARD::P(C)
- R(a);N_GUARD,XS(B)::P(C)
- R(a);XP(C)::S(A),XR(a)
- B(e);XP(D)::S(B),XB(e)
- B(e);N_GUARD::S(B),XB(e)
- B(e);N_GUARD::S(B)
- P(b);N_GUARD::S(A)
- P(d);N_GUARD::P(D)
- P(f);OGATE::R1(I),XP(f)
- Tries
- Try
- K(H);P-FLIGHT,XS(g)
- Vars
- B(e);CHECK,XP(D)::S(B),XB(e)
- R(a);N_GUARD,XS(A)::P(C)
- R(a);N_GUARD,XS(B)::P(C)
- R(a);XP(C)::S(A),XR(a)
- R(a);N_GUARD::P(C)
- B(e);N_GUARD::S(B),XB(e)
- B(e);N_GUARD::S(B)
- P(b);N_GUARD::S(A)
- P(d);N_GUARD::P(D)
- P(f);OGATE::R1(I),XP(f)
- Refutation
- B(e);CHECK
- Try
- B(G);
- Threat
- QAB1(F),XP(f)
- Vars
- K(c);P-FLIGHT,P_SPINP(f)::QAR1(F),XP(f)
- S(g);N_GUARD::QAR2(F)
- P(f);::QAB1(F)
- Refutation
- B(e);
- Try
- B(G);
- Threat
- QAB1(F),XP(f)
- Vars
- K(c);P-FLIGHT,P_SPINP(f)::QAR1(F),XP(f)
- S(g);N_GUARD::QAR2(F)
- P(f);::QAB1(F)
- Refutation
- B(e);
- Try
- B(G);
- Threat
- QAB1(F),XP(f)
- Vars
- K(c);P-FLIGHT,P_SPINP(f)::QAR1(F),XP(f)
- S(g);N_GUARD::QAR2(F)
- P(f);::QAB1(F)
- Refutation
- B(e);
- Try
- B(G);
- Threat
- QAB1(F),XP(f)
- Vars
- K(c);P-FLIGHT,P_SPINP(f)::QAR1(F),XP(f)
- S(g);N_GUARD::QAR2(F)
- P(f);::QAB1(F)
- Refutation
- B(e);
- Try
- Actual
- R(I);
- Vars
- R(a);N_GUARD,XS(A)::P(C)
- R(a);N_GUARD,XS(B)::P(C)
- R(a);XP(C)::S(A),XR(a)
- B(e);XP(D)::S(B),XB(e)
- B(e);N_GUARD,XR(I)::S(B)
- S(g);N_GUARD::QAR2(F),XS(g)
- P(f);SBLOCK::R(I)+B(G)
- B(e);N_GUARD::S(B)
- R(a);N_GUARD::P(C)
- B(e);N_GUARD::S(B),XB(e)
- S(g);N_GUARD::QAR2(F)
- P(b);N_GUARD::S(A)
- P(d);N_GUARD::P(D)
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