MESON Chess Problem Database
Problem Display
PID: 155683 (1r4R1/4PpBp/1Qp3kr/7p/7P/7K/pbp1NR2/q2b1n2 w - - 0 1)
Vilner, Yakov Semyonovich
Arbeiter Schachzeitung, 1927
#2
8 + 13
| 56 | The Problemist | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Rxb6
- 2.Bxb2#
- 2.Bc3#
- 2.Bd4#
- 2.Be5#
- 2.Bf6#
- 1...Rb7
- 2.Bxb2#
- 2.Bc3#
- 2.Bd4#
- 2.Be5#
- 2.Bf6#
- 1...Rf8
- 2.exf8S#
- 1...Rxb6
- Tries
- 1.Qxc6+?
- 1...Bf6
- 2.Bf8#
- 2.Qe4#
- 1...f6!
- 1...Bf6
- 1.Qxb8?
- threat
- 2.Bxb2#
- 2.Bc3#
- 2.Bd4#
- 2.Be5#
- 2.Bf6#
- 1...f5
- 2.Qe8#
- 2.e8Q#
- 2.e8B#
- 1...f6
- 2.Qe8#
- 2.e8Q#
- 2.e8B#
- 1...Bc1
- 2.Bxa1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Be5#
- 2.Bf6#
- 1...Ba3
- 2.Bxa1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Be5#
- 2.Bf6#
- 1...Bc3
- 2.Bxc3#
- 2.Bd4#
- 2.Be5#
- 2.Bf6#
- 1...Bd4
- 2.Bxd4#
- 2.Be5#
- 2.Bf6#
- 1...Be5
- 2.Bxe5#
- 2.Bf6#
- 1...Bf6
- 2.Bxf6#
- 1...Bxg7!
- threat
- 1.e8Q?
- threat
- 2.Bxb2#
- 2.Bc3#
- 2.Bd4#
- 2.Be5#
- 2.Bf6#
- 2.Qxf7#
- 1...Bxg7
- 2.Qxf7#
- 1...Rb7
- 2.Bxb2#
- 2.Bc3#
- 2.Bd4#
- 2.Be5#
- 2.Bf6#
- 1...Bc1
- 2.Bxa1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Be5#
- 2.Bf6#
- 2.Qxf7#
- 1...Ba3
- 2.Bxa1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Be5#
- 2.Bf6#
- 2.Qxf7#
- 1...Bc3
- 2.Bxc3#
- 2.Bd4#
- 2.Be5#
- 2.Bf6#
- 2.Qxf7#
- 1...Bd4
- 2.Bxd4#
- 2.Be5#
- 2.Bf6#
- 2.Qxf7#
- 1...Be5
- 2.Bxe5#
- 2.Bf6#
- 2.Qxf7#
- 1...Bf6
- 2.Bxf6#
- 2.Qe4#
- 1...Rxe8!
- threat
- 1.e8B?
- threat
- 2.Bxb2#
- 2.Bc3#
- 2.Bd4#
- 2.Be5#
- 2.Bf6#
- 2.Bxf7#
- 1...Bxg7
- 2.Bxf7#
- 1...Rb7
- 2.Bxb2#
- 2.Bc3#
- 2.Bd4#
- 2.Be5#
- 2.Bf6#
- 1...Bc1
- 2.Bxa1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Be5#
- 2.Bf6#
- 2.Bxf7#
- 1...Ba3
- 2.Bxa1#
- 2.Bb2#
- 2.Bc3#
- 2.Bd4#
- 2.Be5#
- 2.Bf6#
- 2.Bxf7#
- 1...Bc3
- 2.Bxc3#
- 2.Bd4#
- 2.Be5#
- 2.Bf6#
- 2.Bxf7#
- 1...Bd4
- 2.Bxd4#
- 2.Be5#
- 2.Bf6#
- 2.Bxf7#
- 1...Be5
- 2.Bxe5#
- 2.Bf6#
- 2.Bxf7#
- 1...Bf6
- 2.Bxf6#
- 1...Rxe8!
- threat
- 1.Qxc6+?
- Keys
- 1.Qb3!
- threat
- 2.Qxf7#
- 1...Rxb3+
- 2.Bc3#
- 1...Rf8
- 2.exf8S#
- 1...Bf6
- 2.Qd3#
- 1...f5
- 2.Sf4#
- 1...f6
- 2.Bf8#
- threat
- 1.Qb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(m);OGATE::PXR(m)=S
- Tries
- Try
- Q(E);CHECK,XP(h)
- Refutation
- P(k);P_SPINP(k)
- Try
- Q(E);N_PINP(h),XR(m)
- Threat
- DUALS(5)
- Vars
- B(e);::R(H)+B(G),XB(e)
- Refutation
- B(e);P_SPINB(e),XB(G)
- Try
- P(F);
- Threat
- DUALS(6)
- Vars
- B(e);P_SPINB(e),XB(G)::QAB1(F),XP(k)
- Refutation
- R(m);XQ(F)
- Try
- P(F);
- Threat
- DUALS(6)
- Vars
- B(e);P_SPINB(e),XB(G)::B(F),XP(k)
- B(e);N_SPINP(h),P_SPINP(k)::R(H)+B(G),XB(e)
- Refutation
- R(m);XB(F)
- Try
- Actual
- Q(E);N_PINP(h)
- Threat
- QAB1(E),XP(k)
- Vars
- R(m);CHECK,N_GUARD,XQ(E)::R(H)+B(G)
- R(m);OGATE::PXR(m)=S
- B(e);S_CUTP(k)::QAB(E)
- P(k);SBLOCK::S(A)
- P(k);S_CUTB(e)::R(H)+B(G)
Developed and maintained by Brian Stephenson.
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