MESON Chess Problem Database
Problem Display
PID: 18742 (NKb5/Bp1pp3/P1PP1P2/q2k1B1N/R1R1pQ2/2P5/1P6/8 w - - 0 1)
van Dijk, Nils Gustav Gerard
American Chess Bulletin, 1958
#2
14 + 7
| 5862 | An ABC of Chess Problems | 1970 |
| 4640 | Chess Wizardry: The New ABC of Chess Problems | 1996 |
| 56 | The Problemist | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Qxc3
- 2.Sb6#
- 2.Sc7#
- 1...Qb6
- 2.Sxb6#
- 1...Qc7+
- 2.Sxc7#
- 1...Qd8
- 2.Rc5#
- 1...Qxa4
- 2.Sb6#
- 2.Rc5#
- 1...Qb5
- 2.Sc7#
- 1...Qc5
- 2.Rxc5#
- 1...Qxa6
- 2.Sc7#
- 2.Rc5#
- 1...e3
- 2.Qd4#
- 1...bxc6
- 2.Rd4#
- 1...b5
- 2.Rc5#
- 1...b6
- 2.Sc7#
- 1...dxc6
- 2.Rd4#
- 1...exd6
- 2.Qxe4#
- 1...exf6
- 2.Sxf6#
- 1...e5
- 2.Qd2#
- 1...e6
- 2.Bxe4#
- 1...Qxc3
- Tries
- 1.Sg7?
- threat
- 2.Bxe4#
- 1...Qc7+
- 2.Sxc7#
- 1...Qxa4
- 2.Sb6#
- 2.Rc5#
- 1...e5
- 2.Qd2#
- 1...e3
- 2.Be4#
- 2.Qd4#
- 1...Qb4!
- threat
- 1.Bd4?
- threat
- 2.Qe5#
- 1...Qc7+
- 2.Sxc7#
- 1...Qxa4
- 2.Sb6#
- 2.Rc5#
- 1...exd6
- 2.Qxe4#
- 1...exf6
- 2.Sxf6#
- 1...Qc5
- 2.Rxc5#
- 1...e5
- 2.Qxe5#
- 1...Qb4!
- threat
- 1.Bb6?
- threat
- 2.Sc7#
- 1...Qxb6
- 2.Sxb6#
- 1...Qxa4
- 2.Rc5#
- 1...Qc5
- 2.Rxc5#
- 1...e5
- 2.Qd2#
- 1...Qb4!
- threat
- 1.Rxa5+?
- 1...b5
- 2.Sb6#
- 2.Rc5#
- 1...Kxc4!
- 1...b5
- 1.fxe7?
- threat
- 2.Sf6#
- 1...Qc7+
- 2.Sxc7#
- 1...Qxc3
- 2.Sb6#
- 2.Sc7#
- 1...Qxa4
- 2.Sb6#
- 2.Rc5#
- 1...Qc5
- 2.Rxc5#
- 1...Qb4!
- threat
- 1.Sg7?
- Keys
- 1.b3!
- 1...Qc7+
- 2.Sxc7#
- 1...Qxc3
- 2.Sb6#
- 2.Sc7#
- 1...Qxa4
- 2.Sb6#
- 2.Sc7#
- 2.Rc5#
- 1...Qxa6
- 2.Sc7#
- 2.Rc5#
- 1...bxa6
- 2.Rxa5#
- 1...bxc6
- 2.Rd4#
- 1...dxc6
- 2.Rd4#
- 1...exd6
- 2.Qxe4#
- 1...exf6
- 2.Sxf6#
- 1...Qc5
- 2.Rxc5#
- 1...e5
- 2.Qd2#
- 1...Qb4
- 2.Sc7#
- 1...Qb6
- 2.Sxb6#
- 1...Qd8
- 2.Rc5#
- 1...Qb5
- 2.Sc7#
- 1...e3
- 2.Qd4#
- 1...b5
- 2.Rc5#
- 1...b6
- 2.Sc7#
- 1...e6
- 2.Bxe4#
- 1...Qc7+
- 1.b3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- Q(b);N_GUARD::S(M),XQ(b)
- Q(b);CHECK,N_GUARD::S(M),XQ(b)
- Q(b);N_GUARD::R1(D)
- Q(b);N_GUARD::S(M)
- Q(b);N_GUARD::R1(D),XQ(b)
- P(a);OGATE::QAR1(E)
- P(d);SBLOCK,XP(I)::R1(D)
- P(d);S_CUTQ(b)::R1(D)
- P(d);S_CUTQ(b)::S(M)
- P(e);SBLOCK,XP(I)::R1(D)
- P(f);SBLOCK,XP(J)::QAB1(E),XP(a)
- P(f);XP(K)::S(G),XP(f)
- P(f);SBLOCK::QAR(E)
- P(f);SBLOCK::B(F),XP(a)
- Tries
- Try
- S(G);
- Threat
- B(F),XP(a)
- Vars
- Q(b);CHECK,N_GUARD::S(M),XQ(b)
- P(f);SBLOCK::QAR(E)
- Refutation
- Q(b);
- Try
- B(L);
- Threat
- QAR1(E)
- Vars
- Q(b);CHECK,N_GUARD::S(M),XQ(b)
- P(f);SBLOCK,XP(J)::QAB1(E),XP(a)
- P(f);XP(K)::S(G),XP(f)
- Q(b);N_GUARD::R1(D),XQ(b)
- P(f);::QAR1(E),XP(f)
- Refutation
- Q(b);
- Try
- B(L);
- Threat
- S(M)
- Vars
- Q(b);XB(L)::S(M),XQ(b)
- Q(b);N_GUARD,XR(C)::R1(D)
- Q(b);N_GUARD::R1(D),XQ(b)
- P(f);SBLOCK::QAR(E)
- Refutation
- Q(b);
- Try
- R(C);CHECK,XQ(b)
- Refutation
- K(c);P_SPINP(a),S_FLIGHT,XR(D)
- Try
- P(K);XP(f)
- Threat
- S(G)
- Vars
- Q(b);CHECK,N_GUARD::S(M),XQ(b)
- Q(b);N_GUARD::R1(D),XQ(b)
- Refutation
- Q(b);
- Try
- Actual
- P(A);
- Vars
- Q(b);CHECK,N_GUARD::S(M),XQ(b)
- P(d);N_GUARD,XP(H)::R(C),XQ(b)
- P(d);SBLOCK,XP(I)::R1(D)
- P(e);SBLOCK,XP(I)::R1(D)
- P(f);SBLOCK,XP(J)::QAB1(E),XP(a)
- P(f);XP(K)::S(G),XP(f)
- Q(b);N_GUARD::R1(D),XQ(b)
- P(f);SBLOCK::QAR(E)
- Q(b);N_GUARD::S(M)
- Q(b);N_GUARD::S(M),XQ(b)
- Q(b);N_GUARD::R1(D)
- P(a);OGATE::QAR1(E)
- P(d);S_CUTQ(b)::R1(D)
- P(d);S_CUTQ(b)::S(M)
- P(f);SBLOCK::B(F),XP(a)
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