MESON Chess Problem Database
Problem Display
PID: 166138 (4r1n1/P5Qr/3N4/1PNkP3/3P4/1P3n2/K5Rp/B2R3B w - - 0 1)
Witt, Andreas
2/3 Comm., Pat a Mat, 2013
#2
13 + 6
| 23 | Die Schwalbe | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Rh3
- 2.Qb7#
- 1...Rh4
- 2.Qb7#
- 1...Rh5
- 2.Qb7#
- 1...Rh6
- 2.Qb7#
- 1...Rh8
- 2.Qb7#
- 1...Re6
- 2.a8Q#
- 2.a8B#
- 1...Sg1
- 2.Rgxg1#
- 1...Sd2
- 2.Rgxd2#
- 1...Sxd4
- 2.Rc2#
- 1...Sg5
- 2.Rxg5#
- 1...Rh3
- Tries
- 1.Sc4?
- threat
- 2.Se3#
- 2.Sb6#
- 1...Rxe5
- 2.a8Q#
- 2.a8B#
- 1...Sxe5
- 2.Rg5#
- 1...Rh6
- 2.Se3#
- 1...Re6
- 2.Se3#
- 1...Rb8
- 2.Se3#
- 1...Sxd4!
- threat
- 1.Sde4?
- threat
- 2.Sc3#
- 1...Rxe5
- 2.a8Q#
- 2.a8B#
- 1...Sxd4
- 2.Rxd4#
- 1...Sxe5
- 2.dxe5#
- 1...Sd2!
- threat
- 1.Sf5?
- threat
- 2.Se3#
- 1...Rxe5
- 2.a8Q#
- 2.a8B#
- 1...Sxd4
- 2.Rc2#
- 1...Sxe5!
- threat
- 1.Sxe8?
- threat
- 2.Sc7#
- 2.a8Q#
- 2.a8B#
- 1...Sxd4
- 2.Rc2#
- 1...Sxe5
- 2.Rg5#
- 2.Qxe5#
- 1...Rh3
- 2.Sc7#
- 2.Qb7#
- 2.Qd7#
- 2.Qf7#
- 2.Qxg8#
- 2.a8Q#
- 2.a8B#
- 1...Rh4
- 2.Sc7#
- 2.Qb7#
- 2.Qd7#
- 2.Qf7#
- 2.Qxg8#
- 2.a8Q#
- 2.a8B#
- 1...Rh5
- 2.Sc7#
- 2.Qb7#
- 2.Qd7#
- 2.Qf7#
- 2.Qxg8#
- 2.a8Q#
- 2.a8B#
- 1...Rh6
- 2.Sc7#
- 1...Rh8
- 2.Sc7#
- 2.Qb7#
- 2.Qd7#
- 2.Qf7#
- 2.a8Q#
- 2.a8B#
- 1...Se1
- 2.Sc7#
- 2.a8Q#
- 2.a8B#
- 1...Sg1
- 2.Sc7#
- 2.Rgxg1#
- 2.a8Q#
- 2.a8B#
- 1...Sd2
- 2.Sc7#
- 2.Rgxd2#
- 2.a8Q#
- 2.a8B#
- 1...Sh4
- 2.Sc7#
- 2.a8Q#
- 2.a8B#
- 1...Sg5
- 2.Sc7#
- 2.Rxg5#
- 2.a8Q#
- 2.a8B#
- 1...Sf6
- 2.Sxf6#
- 2.Sc7#
- 2.a8Q#
- 2.a8B#
- 1...Sh6
- 2.Sf6#
- 2.Sc7#
- 2.a8Q#
- 2.a8B#
- 1...Se7
- 2.Sf6#
- 2.Sc7#
- 1...Rxg7!
- threat
- 1.Qf7+?
- 1...Re6
- 2.Qxe6#
- 2.Qxf3#
- 2.a8Q#
- 2.a8B#
- 1...Rxf7!
- 1...Re6
- 1.Sc4?
- Keys
- 1.Se6!
- threat
- 2.Sf4#
- 2.Sc7#
- 1...Kxe6
- 2.d5#
- 1...Rxg7
- 2.Sf4#
- 1...Rxe6
- 2.a8Q#
- 2.a8B#
- 1...Sxd4
- 2.Rg6#
- 1...Sxe5
- 2.Qxe5#
- 1...Rh4
- 2.Sc7#
- 1...Re7
- 2.Sf4#
- 1...Rc8
- 2.Sf4#
- 1...Rf8
- 2.Sc7#
- threat
- 1.Se6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 6
- REMOVED MATES = 7
- Sets
- R(d);N_GUARD::QAB(M)
- R(e);N_GUARD::P=Q
- S(b);OGATEB::B(C)+R(E),XS(b)
- S(b);OGATEB,P_SPINS(b),XP(G)::B(C)+R(E)
- Tries
- Try
- S(K);
- Threat
- DUALS(2)
- Vars
- R(e);N_GUARD,XP(J)::P=Q
- S(b);OGATEB,XP(J)::B(C)+R(E)
- R(d);::S(K)
- R(e);::S(K)
- Refutation
- S(b);P_SPINS(b),XP(G)
- Try
- S(K);
- Threat
- S(K)
- Vars
- R(e);N_GUARD,XP(J)::P=Q
- S(b);OGATE,P_SPINS(b),XP(G)::R1(B),XS(b)
- S(b);OGATE,XP(J)::R(B)+P(G),XS(b)
- Refutation
- S(b);
- Try
- S(K);
- Threat
- S(K)
- Vars
- R(e);N_GUARD,XP(J)::P=Q
- S(b);OGATEB,P_SPINS(b),XP(G)::B(C)+R(E)
- Refutation
- S(b);XP(J)
- Try
- S(K);XR(e)
- Threat
- DUALS(3)
- Vars
- S(b);OGATEB,P_SPINS(b),XP(G)::B(C)+R(E)
- R(d);::S(K)
- Refutation
- R(d);XQ(M)
- Try
- Q(M);CHECK
- Refutation
- R(d);XQ(M)
- Try
- Actual
- S(I);
- Threat
- DUALS(2)
- Vars
- K(c);OGATE,S_FLIGHT,XS(I)::P(G)
- R(d);XQ(M)::S(I)
- R(e);N_GUARD,SBLOCK,XS(I)::P=Q
- S(b);OGATEB,P_SPINS(b),XP(G)::B(C)+R(E)
- S(b);OGATE,XP(J)::QAR1(M),XS(b)
- R(d);::S(I)
- R(e);::S(I)
Developed and maintained by Brian Stephenson.
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