MESON Chess Problem Database
Problem Display
PID: 21503 (1K2n1b1/2PR4/2PPkP2/1R2b2N/N7/3Bn3/8/8 w - - 0 1)
Sheppard, Charles William
2nd Prize, Good Companions (February), 1919
#2
10 + 5
| 3132 | The Good Companion Two-Mover | 1922 |
SOLUTION
- SOUND
- Sets
- 1...Bxf6
- 2.Sf4#
- 1...Sd5
- 2.Sc5#
- 1...Sf5
- 2.Bc4#
- 1...Sxd6
- 2.Re7#
- 1...Sxf6
- 2.Sg7#
- 1...Bxf6
- Tries
- 1.f7?
- threat
- 2.fxe8Q#
- 2.fxe8R#
- 2.fxg8Q#
- 2.fxg8B#
- 2.f8S#
- 1...Bxd6
- 2.fxg8Q#
- 2.fxg8B#
- 1...Sxd6
- 2.f8S#
- 1...Ba1
- 2.fxe8Q#
- 2.fxe8R#
- 2.fxg8Q#
- 2.fxg8B#
- 2.f8S#
- 1...Bb2
- 2.fxe8Q#
- 2.fxe8R#
- 2.fxg8Q#
- 2.fxg8B#
- 2.f8S#
- 1...Bh2
- 2.fxe8Q#
- 2.fxe8R#
- 2.fxg8Q#
- 2.fxg8B#
- 2.f8S#
- 1...Bc3
- 2.fxe8Q#
- 2.fxe8R#
- 2.fxg8Q#
- 2.fxg8B#
- 2.f8S#
- 1...Bg3
- 2.fxe8Q#
- 2.fxe8R#
- 2.fxg8Q#
- 2.fxg8B#
- 2.f8S#
- 1...Bd4
- 2.fxe8Q#
- 2.fxe8R#
- 2.fxg8Q#
- 2.fxg8B#
- 2.f8S#
- 1...Bf4
- 2.fxe8Q#
- 2.fxe8R#
- 2.fxg8Q#
- 2.fxg8B#
- 2.f8S#
- 1...Bg7
- 2.fxe8Q#
- 2.fxe8R#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Bh8
- 2.fxe8Q#
- 2.fxe8R#
- 2.fxg8Q#
- 2.fxg8B#
- 2.f8S#
- 1...Sd1
- 2.fxe8Q#
- 2.fxe8R#
- 2.fxg8Q#
- 2.fxg8B#
- 2.f8S#
- 1...Sf1
- 2.fxe8Q#
- 2.fxe8R#
- 2.fxg8Q#
- 2.fxg8B#
- 2.f8S#
- 1...Sc2
- 2.fxe8Q#
- 2.fxe8R#
- 2.fxg8Q#
- 2.fxg8B#
- 2.f8S#
- 1...Sg2
- 2.fxe8Q#
- 2.fxe8R#
- 2.fxg8Q#
- 2.fxg8B#
- 2.f8S#
- 1...Sc4
- 2.fxe8Q#
- 2.fxe8R#
- 2.fxg8Q#
- 2.fxg8B#
- 2.f8S#
- 1...Sg4
- 2.fxe8Q#
- 2.fxe8R#
- 2.fxg8Q#
- 2.fxg8B#
- 2.f8S#
- 1...Sf6
- 2.Sg7#
- 2.f8S#
- 1...Bxf7!
- threat
- 1.c8S?
- threat
- 2.Re7#
- 1...Bxf6
- 2.Sf4#
- 1...Sd5
- 2.Sc5#
- 1...Sf5
- 2.Bc4#
- 1...Bxd6+!
- threat
- 1.f7?
- Keys
- 1.c8Q!
- threat
- 2.Qxe8#
- 1...Bxd6+
- 2.Rc7#
- 1...Bxf6
- 2.Sf4#
- 1...Sxd6
- 2.Re7#
- 1...Sxf6
- 2.Sg7#
- 1...Bf7
- 2.Rd8#
- 1...Sd5
- 2.Sc5#
- 1...Sf5
- 2.Bc4#
- 1...Sc7
- 2.Qxg8#
- 1...Sg7
- 2.Qxg8#
- threat
- 1.c8Q!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- B(b);N_GUARD,SBLOCK,XP(G)::S(D)
- S(a);SBLOCK::S(B)
- S(a);N_GUARD,SBLOCK::B(A)
- S(d);SBLOCK,XP(F)::R1(I)
- S(d);N_GUARD,SBLOCK,XP(G)::S(D)
- Tries
- Try
- P(G);
- Threat
- DUALS(5)
- Vars
- B(b);P_PINP(H),XP(F)::PXB(e)=Q
- S(d);XP(F)::P=S
- Refutation
- B(e);XP(G)
- Try
- P(H);P_SPINP(F)
- Threat
- R1(I)
- Vars
- B(b);N_GUARD,N_PINP(F),SBLOCK,XP(G)::S(D)
- S(a);SBLOCK::S(B)
- S(a);N_GUARD,SBLOCK::B(A)
- Refutation
- B(b);CHECK,XP(F)
- Try
- Actual
- P(H);P_SPINP(F)
- Threat
- QAR2(H),XS(d)
- Vars
- B(b);CHECK,SBLOCK,XP(F)::QAB(H)+R(I)
- B(b);N_GUARD,N_PINP(F),SBLOCK,XP(G)::S(D)
- S(d);SBLOCK,XP(F)::QAB(H)+R(I),DCHECK
- S(d);N_GUARD,SBLOCK,XP(G)::S(D)
- B(e);SBLOCK::QAB(H)+R(I)
- S(a);SBLOCK::S(B)
- S(a);N_GUARD,SBLOCK::B(A)
- S(d);N_PINP(F),OGATE::QAB(H),XB(e)
- S(d);OGATE::QAB(H),XB(e)
Developed and maintained by Brian Stephenson.
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