MESON Chess Problem Database
Problem Display
PID: 50977 (3B1R2/3n3r/4N2p/5P1k/4Nr1p/3n1P2/8/K2B2R1 w - - 0 1)
Lawton, Howard
Yorkshire Observer Budget, 1934
#2
9 + 7
| 5381 | Mind Sports Olympiad Solving Ty. | 2003 |
| 5405 | Chess Solving Yearbook 2003 | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Rxf3
- 2.Bxf3#
- 1...Rxe4
- 2.fxe4#
- 1...Rg4
- 2.fxg4#
- 1...Rxf5
- 2.Rxf5#
- 2.f4#
- 1...Rg7
- 2.Sxg7#
- 1...Rh8
- 2.Sg7#
- 1...Sc1
- 2.Sxf4#
- 1...Se1
- 2.Sxf4#
- 1...Sb2
- 2.Sxf4#
- 1...Sf2
- 2.Sxf4#
- 1...Sb4
- 2.Sxf4#
- 1...S3c5
- 2.Sxf4#
- 1...S3e5
- 2.Sxf4#
- 1...S7c5
- 2.Sf6#
- 1...S7e5
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sb8
- 2.Sf6#
- 1...Sxf8
- 2.Sf6#
- 1...h3
- 2.Sg3#
- 1...Rxf3
- Tries
- 1.Rh1?
- threat
- 2.Sg3#
- 1...Rxf3
- 2.Bxf3#
- 2.Rxh4#
- 1...Rxe4
- 2.fxe4#
- 1...Rg4
- 2.fxg4#
- 1...Rg7
- 2.Sxg7#
- 1...Rxf5!
- threat
- 1.Rg7?
- 1...Rxf3
- 2.Bxf3#
- 1...Rxe4
- 2.fxe4#
- 1...Rxf5
- 2.Rxf5#
- 2.f4#
- 1...Rxg7
- 2.Sxg7#
- 1...Sxf8
- 2.Sf6#
- 1...Rg4
- 2.fxg4#
- 1...Sc1
- 2.Sxf4#
- 1...Se1
- 2.Sxf4#
- 1...Sb2
- 2.Sxf4#
- 1...Sf2
- 2.Sxf4#
- 1...Sb4
- 2.Sxf4#
- 1...S3c5
- 2.Sxf4#
- 1...S3e5
- 2.Sxf4#
- 1...S7c5
- 2.Sf6#
- 1...S7e5
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sb8
- 2.Sf6#
- 1...h3
- 2.Sg3#
- 1...Rh8!
- 1...Rxf3
- 1.Rf7?
- 1...Rxf3
- 2.Bxf3#
- 1...Rxe4
- 2.fxe4#
- 1...Rxf5
- 2.Rxf5#
- 2.f4#
- 1...Rg4
- 2.fxg4#
- 1...Rg7
- 2.Sxg7#
- 1...Rh8
- 2.Sg7#
- 1...Sc1
- 2.Sxf4#
- 1...Se1
- 2.Sxf4#
- 1...Sb2
- 2.Sxf4#
- 1...Sf2
- 2.Sxf4#
- 1...Sb4
- 2.Sxf4#
- 1...S3c5
- 2.Sxf4#
- 1...S3e5
- 2.Sxf4#
- 1...S7c5
- 2.Sf6#
- 1...S7e5
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sb8
- 2.Sf6#
- 1...Sf8
- 2.Sf6#
- 1...h3
- 2.Sg3#
- 1...Rxf7!
- 1...Rxf3
- 1.Rh1?
- Keys
- 1.Rh8!
- 1...Rxf3
- 2.Bxf3#
- 1...Rxe4
- 2.fxe4#
- 1...Rxf5
- 2.f4#
- 1...Rxh8
- 2.Sg7#
- 1...Re7
- 2.Rg5#
- 1...Rg4
- 2.fxg4#
- 1...Rf7
- 2.Rg5#
- 1...Rg7
- 2.Sxg7#
- 1...Sc1
- 2.Sxf4#
- 1...Se1
- 2.Sxf4#
- 1...Sb2
- 2.Sxf4#
- 1...Sf2
- 2.Sxf4#
- 1...Sb4
- 2.Sxf4#
- 1...S3c5
- 2.Sxf4#
- 1...S3e5
- 2.Sxf4#
- 1...S7c5
- 2.Sf6#
- 1...S7e5
- 2.Sf6#
- 1...Sb6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sb8
- 2.Sf6#
- 1...Sf8
- 2.Sf6#
- 1...h3
- 2.Sg3#
- 1...Rxf3
- 1.Rh8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(b);OGATE,P_SPINR(b),XP(D)::B(B),XR(b)
- R(b);OGATE,XS(E)::B(B)+P(D),XR(b)
- R(b);OGATE::P(D),XR(b)
- R(g);N_GUARD::S(G),XR(g)
- R(g);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XR(b)
- S(f);N_GUARD::S(E)
- S(f);N_GUARD::S(E),XS(f)
- S(f);N_GUARD,XR(I)::S(E)
- P(c);N_GUARD::S(E)
- Tries
- Try
- R(C);P_PINP(c)
- Threat
- S(E)
- Vars
- R(b);OGATE,XS(E)::B(B)+P(D),XR(b)
- R(b);OGATE::P(D),XR(b)
- R(g);N_GUARD::S(G),XR(g)
- Refutation
- R(b);XP(F)
- Try
- R(C);
- Vars
- R(b);OGATE,P_SPINR(b),XP(D)::B(B),XR(b)
- R(b);OGATE,XS(E)::B(B)+P(D),XR(b)
- R(g);XR(C)::S(G),XR(g)
- S(f);N_GUARD,XR(I)::S(E)
- R(b);OGATE::P(D),XR(b)
- S(a);N_GUARD::S(G),XR(b)
- S(f);N_GUARD::S(E)
- S(f);N_GUARD::S(E),XS(f)
- P(c);N_GUARD::S(E)
- Refutation
- R(g);
- Try
- R(I);
- Vars
- R(b);OGATE,P_SPINR(b),XP(D)::B(B),XR(b)
- R(b);OGATE,XS(E)::B(B)+P(D),XR(b)
- R(b);OGATE::P(D),XR(b)
- R(g);N_GUARD::S(G),XR(g)
- R(g);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XR(b)
- S(f);N_GUARD::S(E)
- S(f);N_GUARD::S(E),XS(f)
- P(c);N_GUARD::S(E)
- Refutation
- R(g);XR(I)
- Try
- Actual
- R(I);
- Vars
- R(b);OGATE,P_SPINR(b),XP(D)::B(B),XR(b)
- R(b);OGATE,XS(E)::B(B)+P(D),XR(b)
- R(b);OGATE,XP(F)::B(B)+P(D)
- R(g);N_GUARD,XR(I)::S(G)
- R(g);P_SPINP(e)::R1(C)
- R(b);OGATE::P(D),XR(b)
- R(g);N_GUARD,P_SPINP(e)::S(G),XR(g)
- S(a);N_GUARD::S(G),XR(b)
- S(f);N_GUARD::S(E)
- S(f);N_GUARD::S(E),XS(f)
- P(c);N_GUARD::S(E)
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