MESON Chess Problem Database
Problem Display
PID: 162252 (4R3/2pP1r1p/3pBp1K/1pp2N1N/2P1k2P/3p1bP1/4q3/Q3R1Bn w - - 0 1)
Maleika, Gerhard
4th Prize, The Problemist, 2016
#2
12 + 12
| 56 | The Problemist | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qe3+
- 2.Rxe3#
- 1...Rxd7
- 2.Sxf6#
- 2.Bxd7#
- 1...Re7
- 2.Sxf6#
- 1...Rg7
- 2.Sxf6#
- 1...Sxg3
- 2.Sfxg3#
- 1...c6
- 2.Sxd6#
- 1...Qe3+
- Tries
- 1.Se3?
- threat
- 2.Bd5#
- 2.Bf5#
- 2.Bxf7#
- 1...Qxe3+
- 2.Rxe3#
- 1...Rxd7
- 2.Sxf6#
- 2.Bd5#
- 2.Bf5#
- 2.Bxd7#
- 1...Bxh5
- 2.Bd5#
- 1...Bg2
- 2.Bd5#
- 1...Bg4
- 2.Bd5#
- 1...d2
- 2.Bf5#
- 1...Re7
- 2.Sxf6#
- 2.Bd5#
- 2.Bf5#
- 1...Rg7
- 2.Sxf6#
- 2.Bd5#
- 2.Bf5#
- 2.Bf7#
- 1...Rf8
- 2.Bd5#
- 2.Bf5#
- 1...d5
- 2.Bxd5#
- 2.Bf5#
- 2.Bxf7#
- 1...f5
- 2.Bd5#
- 2.Bxf5#
- 2.Bxf7#
- 1...Qb2!
- threat
- 1.Sd4?
- threat
- 2.Bd5#
- 2.Bf5#
- 2.Bxf7#
- 1...Qe3+
- 2.Rxe3#
- 1...Ke5
- 2.Bxf7#
- 1...Rxd7
- 2.Bd5#
- 2.Bf5#
- 2.Bxd7#
- 1...bxc4
- 2.Bxf7#
- 1...cxd4
- 2.Qxd4#
- 1...d2
- 2.Bf5#
- 1...Rg7
- 2.Bd5#
- 2.Bf5#
- 2.Bf7#
- 1...Rf8
- 2.Bd5#
- 2.Bf5#
- 1...Bg4
- 2.Bd5#
- 2.Bf5#
- 1...d5
- 2.Bxd5#
- 2.Bf5#
- 2.Bxf7#
- 1...f5
- 2.Bd5#
- 2.Bxf5#
- 2.Bxf7#
- 1...Re7!
- threat
- 1.Se7?
- threat
- 2.Bd5#
- 2.Bf5#
- 1...Qe3+
- 2.Rxe3#
- 1...Rxe7
- 2.Sxf6#
- 1...Bxh5
- 2.Bd5#
- 1...Sxg3
- 2.Bd5#
- 1...Bg2
- 2.Bd5#
- 1...Bg4
- 2.Bd5#
- 1...d2
- 2.Bf5#
- 1...d5
- 2.Bxd5#
- 2.Bf5#
- 1...f5
- 2.Bd5#
- 1...c6
- 2.Bf5#
- 1...Sf2!
- threat
- 1.Qc1?
- threat
- 2.Qf4#
- 1...Qe3+
- 2.Rxe3#
- 2.Qxe3#
- 1...Ke5
- 2.Qf4#
- 1...d2!
- threat
- 1.Se3?
- Keys
- 1.Sfg7!
- threat
- 2.Bd5#
- 2.Bf5#
- 2.Bxf7#
- 1...Qe3+
- 2.Rxe3#
- 1...Rxd7
- 2.Sxf6#
- 2.Bd5#
- 2.Bf5#
- 2.Bxd7#
- 1...Rxg7
- 2.Sxf6#
- 1...Bxh5
- 2.Bd5#
- 1...bxc4
- 2.Bxf7#
- 1...Bg2
- 2.Bd5#
- 1...Bg4
- 2.Bd5#
- 1...d2
- 2.Bf5#
- 1...Re7
- 2.Sxf6#
- 2.Bd5#
- 2.Bf5#
- 1...Rf8
- 2.Bd5#
- 2.Bf5#
- 1...d5
- 2.Bxd5#
- 2.Bf5#
- 2.Bxf7#
- 1...f5
- 2.Bd5#
- 2.Bxf5#
- 2.Bxf7#
- threat
- 1.Sfg7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 3
- Sets
- Q(b);CHECK,OGATE::R1(B),XQ(b)
- R(k);N_GUARD::S(H),XP(i)
- S(a);XP(D)::S(G),XS(a)
- P(j);N_GUARD::S(G),XP(h)
- Tries
- Try
- S(G);N_PINQ(b)
- Threat
- DUALS(3)
- Vars
- Q(b);CHECK,OGATE,P_SPINQ(b),XS(G)::R1(B),XQ(b)
- B(d);XS(H)::R(L)+B(I),DCHECK
- B(d);::R(L)+B(I),DCHECK
- P(c);::R(L)+B(I),DCHECK
- Refutation
- Q(b);
- Try
- S(G);
- Threat
- DUALS(3)
- Vars
- Q(b);CHECK,OGATE::R1(B),XQ(b)
- K(e);P-FLIGHT::R(L)+B(I),XR(k)
- P(f);XP(E)::R(L)+B(I),XR(k)
- P(g);OGATE,XS(G)::QAR1(A),XP(g)
- P(c);::R(L)+B(I),DCHECK
- Refutation
- R(k);
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- Q(b);CHECK,OGATE::R1(B),XQ(b)
- R(k);N_GUARD,XS(G)::S(H),XP(i)
- B(d);XS(H)::B(I)
- S(a);XP(D)::B(I)
- B(d);::B(I)
- P(c);::B(I)
- P(i);::B(I)
- P(j);::B(I)
- Refutation
- S(a);
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- K(e);P-FLIGHT::QAB1(A)
- Refutation
- P(c);
- Try
- Actual
- S(G);
- Threat
- DUALS(3)
- Vars
- Q(b);CHECK,OGATE::R1(B),XQ(b)
- R(k);N_GUARD,XS(G)::S(H),XP(i)
- B(d);XS(H)::R(L)+B(I),DCHECK
- P(f);XP(E)::R(L)+B(I),XR(k)
- B(d);::R(L)+B(I),DCHECK
- P(c);::R(L)+B(I),DCHECK
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