MESON Chess Problem Database
Problem Display
PID: 50515 (1n6/5Q2/RPPk1pK1/b2p1p2/1n3P2/B2p1Bp1/N2Pq3/2R5 w - - 0 1)
Dittrich, Stefan
2nd Prize, Het Belgisch Schaakbord (L'Echiquier Belge), 1983-1984
#2
11 + 10
| 5110 | Bekroonde Problemen | 2002 |
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Qxf6#
- 1...Qf1
- 2.Qxf6#
- 1...Qxf3
- 2.Qxf6#
- 1...Qxd2
- 2.Qxf6#
- 1...Qf2
- 2.Qxf6#
- 1...Qg2
- 2.Qxf6#
- 1...Qh2
- 2.Qxf6#
- 1...Qe6
- 2.Qc7#
- 1...Qe7
- 2.Qxd5#
- 1...Sxa6
- 2.Qd7#
- 1...Sd7
- 2.Qxd7#
- 1...Qd1
- Tries
- 1.Kxf6?
- threat
- 2.Qxd5#
- 2.Qc7#
- 1...Qe5+
- 2.fxe5#
- 1...Qe6+
- 2.Qxe6#
- 1...Qe7+
- 2.Qxe7#
- 1...Sd7+
- 2.Qxd7#
- 1...Qxf3
- 2.Qe6#
- 2.Qc7#
- 2.Qe7#
- 2.Qf8#
- 1...Sxa6
- 2.Qxd5#
- 2.Qd7#
- 1...Qe4
- 2.Qc7#
- 1...d4
- 2.Qd5#
- 2.Qc7#
- 1...Bxb6!
- threat
- 1.Rxa5?
- threat
- 2.Bxb4#
- 2.Rxd5#
- 1...Qxf3
- 2.Bxb4#
- 2.Qxf6#
- 1...Qxd2
- 2.Rxd5#
- 2.Qxf6#
- 1...Sxc6
- 2.Rxd5#
- 1...Qf2
- 2.Rxd5#
- 2.Qxf6#
- 1...Qe3
- 2.Rxd5#
- 1...Qe5
- 2.Bxb4#
- 1...Qe6
- 2.Bxb4#
- 2.Qc7#
- 1...Sa6
- 2.Rxd5#
- 2.Qd7#
- 1...Sd7
- 2.Rxd5#
- 2.Qxd7#
- 1...d4
- 2.Bxb4#
- 2.Rd5#
- 1...Qe4!
- threat
- 1.Qf8+?
- 1...Ke6
- 2.Qxf6#
- 1...Qe7!
- 1...Ke6
- 1.c7?
- threat
- 2.cxb8Q#
- 2.cxb8B#
- 2.c8S#
- 1...Qxf3
- 2.cxb8Q#
- 2.cxb8B#
- 2.c8S#
- 1...Qxd2
- 2.cxb8Q#
- 2.cxb8B#
- 2.c8S#
- 1...Bxb6
- 2.Bxb4#
- 2.cxb8Q#
- 2.cxb8B#
- 2.c8S#
- 1...Sxa6
- 2.c8S#
- 1...Qe7
- 2.Qxd5#
- 1...Qe4
- 2.cxb8Q#
- 2.cxb8B#
- 2.c8S#
- 1...Qd1
- 2.cxb8Q#
- 2.cxb8B#
- 2.c8S#
- 1...Qf1
- 2.cxb8Q#
- 2.cxb8B#
- 2.c8S#
- 1...Qe1
- 2.cxb8Q#
- 2.cxb8B#
- 2.c8S#
- 1...Qf2
- 2.cxb8Q#
- 2.cxb8B#
- 2.c8S#
- 1...Qg2
- 2.cxb8Q#
- 2.cxb8B#
- 2.c8S#
- 1...Qh2
- 2.cxb8Q#
- 2.cxb8B#
- 2.c8S#
- 1...Qe3
- 2.cxb8Q#
- 2.cxb8B#
- 2.c8S#
- 1...Qe5
- 2.cxb8Q#
- 2.cxb8B#
- 2.c8S#
- 1...Qe6
- 2.cxb8Q#
- 2.cxb8B#
- 1...Sc6
- 2.c8S#
- 1...Sd7
- 2.c8S#
- 1...g2
- 2.cxb8Q#
- 2.cxb8B#
- 2.c8S#
- 1...d4
- 2.cxb8Q#
- 2.cxb8B#
- 2.c8S#
- 1...Qe8!
- threat
- 1.Kxf6?
- Keys
- 1.Sc3!
- threat
- 2.Sb5#
- 1...Kc5
- 2.Qxd5#
- 1...Kxc6
- 2.Qc7#
- threat
- 1.Sc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 11
- Sets
- Q(a);N_GUARD::QAR2(K),XP(i)
- Q(a);N_GUARD,XB(E)::QAR2(K),XP(i)
- Q(a);N_GUARD,XP(C)::QAR2(K),XP(i)
- Q(a);SBLOCK::QAB1(K)
- Q(a);SBLOCK::QAR1(K),XP(f)
- S(j);N_GUARD,XR(G)::QAR1(K)
- S(j);N_GUARD::QAR1(K),XS(j)
- Tries
- Try
- K(J);P-FLIGHT,XP(i)
- Threat
- DUALS(2)
- Vars
- Q(a);CHECK,OGATE::P(F),XQ(a)
- Q(a);CHECK,N_GUARD::QAR1(K),XQ(a)
- Q(a);CHECK,N_GUARD::QAB1(K),XQ(a)
- S(j);CHECK,N_GUARD::QAR1(K),XS(j)
- Q(a);::QAB1(K)
- Refutation
- B(e);XP(H)
- Try
- R(G);XB(e)
- Threat
- DUALS(2)
- Vars
- S(j);XP(I)::R1(G),XP(f)
- Q(a);::R1(G),XP(f)
- Q(a);::B(D),XS(d)
- Refutation
- Q(a);
- Try
- Q(K);CHECK
- Vars
- K(h);N_SPINS(d),P-FLIGHT::QAR1(K),XP(i)
- Refutation
- Q(a);P_SPINQ(a)
- Try
- P(I);
- Threat
- DUALS(3)
- Vars
- S(j);XR(G)::P=S
- Q(a);SBLOCK::QAR1(K),XP(f)
- Q(a);::PXS(j)=Q
- S(j);::P=S
- Refutation
- Q(a);P_PINQ(K)
- Try
- Actual
- S(B);
- Threat
- S(B)
- Vars
- K(h);S_FLIGHT::QAR1(K),XP(f)
- K(h);N_SPINS(d),P-FLIGHT,P_SPINP(f),XP(I)::QAR1(K)
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