MESON Chess Problem Database
Problem Display
PID: 762 (1KB4B/Pp2p3/6p1/R4Np1/2p1kPN1/p2p2p1/bq5P/Rn3Q1n w - - 0 1)
Hartong, Jan
1st Prize, British Chess Magazine, 1952
#2
11 + 13
| 785 | Het Belgisch Schaakbord (L'Echiquier Belge) | 1954 |
SOLUTION
- SOUND
- Sets
- 1...Qxa1
- 2.Bxb7#
- 1...Qc1
- 2.Bxb7#
- 2.Re5#
- 1...Qc3
- 2.Bxb7#
- 1...Qe5+
- 2.Rxe5#
- 1...Qg7
- 2.Bxb7#
- 1...Qc2
- 2.Bxb7#
- 2.Re5#
- 1...Qd2
- 2.Bxb7#
- 2.Re5#
- 1...Qe2
- 2.Bxb7#
- 2.Re5#
- 1...Qg2
- 2.Bxb7#
- 2.Re5#
- 1...Qxh2
- 2.Bxb7#
- 2.Re5#
- 1...Qb3
- 2.Re5#
- 1...Qb4
- 2.Re5#
- 1...Qb6
- 2.Re5#
- 1...Bb3
- 2.Bxb7#
- 1...Sd2
- 2.Re1#
- 1...Sc3
- 2.Re5#
- 1...c3
- 2.Re5#
- 1...gxf5
- 2.Bxf5#
- 1...b5
- 2.a8Q#
- 2.a8B#
- 1...b6
- 2.Bb7#
- 2.a8Q#
- 2.a8B#
- 1...e5
- 2.Sf6#
- 1...e6
- 2.Sd6#
- 1...Qxa1
- Tries
- 1.Bxb2?
- threat
- 2.Bxb7#
- 2.Re5#
- 1...b5
- 2.a8Q#
- 2.a8B#
- 1...Sc3
- 2.Re5#
- 1...c3
- 2.Re5#
- 1...b6
- 2.Bb7#
- 2.Re5#
- 2.a8Q#
- 2.a8B#
- 1...e5
- 2.Sf6#
- 2.Sd6#
- 2.Rxe5#
- 1...Sf2!
- threat
- 1.Bxb2?
- Keys
- 1.hxg3!
- 1...Qe5+
- 2.Rxe5#
- 1...Qxa1
- 2.Bxb7#
- 2.Qg2#
- 2.Qxh1#
- 1...Qxh8
- 2.Qg2#
- 1...Sxg3
- 2.Sxg3#
- 1...gxf4
- 2.Qxf4#
- 1...gxf5
- 2.Bxf5#
- 1...Qf2
- 2.Bxb7#
- 1...Qb5
- 2.Qg2#
- 2.Qxh1#
- 1...Sf2
- 2.Qg2#
- 1...b5
- 2.a8Q#
- 2.a8B#
- 1...Qc1
- 2.Bxb7#
- 2.Re5#
- 2.Qg2#
- 1...Qc3
- 2.Bxb7#
- 2.Qg2#
- 2.Qxh1#
- 1...Qd4
- 2.Qg2#
- 2.Qxh1#
- 1...Qf6
- 2.Qg2#
- 2.Qxh1#
- 1...Qg7
- 2.Bxb7#
- 2.Qg2#
- 2.Qxh1#
- 1...Qc2
- 2.Bxb7#
- 2.Re5#
- 1...Qd2
- 2.Bxb7#
- 2.Re5#
- 1...Qe2
- 2.Bxb7#
- 2.Re5#
- 1...Qg2
- 2.Bxb7#
- 2.Re5#
- 2.Qxg2#
- 1...Qh2
- 2.Bxb7#
- 2.Re5#
- 1...Qb3
- 2.Re5#
- 2.Qg2#
- 2.Qxh1#
- 1...Qb4
- 2.Re5#
- 2.Qg2#
- 2.Qxh1#
- 1...Qb6
- 2.Re5#
- 2.Qg2#
- 2.Qxh1#
- 1...Bb3
- 2.Bxb7#
- 1...Sd2
- 2.Re1#
- 1...Sc3
- 2.Re5#
- 1...d2
- 2.Qe2#
- 1...c3
- 2.Re5#
- 1...b6
- 2.Bb7#
- 2.a8Q#
- 2.a8B#
- 1...e5
- 2.Sf6#
- 1...e6
- 2.Sd6#
- 1...Qe5+
- 1.hxg3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 6
- Sets
- Q(d);N_GUARD,XR(A)::B(J),XP(l)
- Q(d);N_GUARD::B(J),XP(l)
- Q(d);CHECK,N_GUARD::R1(F),XQ(d)
- Q(d);N_GUARD::R1(F)
- B(c);S_CUTQ(d)::B(J),XP(l)
- S(a);OGATE::R(A)
- S(a);S_CUTQ(d)::R1(F)
- P(h);S_CUTQ(d)::R1(F)
- P(k);OGATE,XS(G)::B(J),XP(k)
- P(l);::P=Q
- P(m);N_GUARD,S_CUTQ(d)::S(E)
- P(m);N_GUARD::S(G)
- Tries
- Try
- B(K);XQ(d)
- Threat
- DUALS(2)
- Vars
- P(l);::P=Q
- S(a);::R1(F)
- P(h);::R1(F)
- Refutation
- S(b);
- Try
- Actual
- P(C);XP(g)
- Vars
- Q(d);CHECK,N_GUARD::R1(F),XQ(d)
- Q(d);N_GUARD,P_PINB(J),XB(K)::QAB(B)
- S(b);XP(C)::S(G),XS(b)
- P(j);OGATE,XP(D)::QAR1(B),XP(j)
- P(k);OGATE,XS(G)::B(J),XP(k)
- Q(d);N_GUARD::B(J),XP(l)
- S(b);S_CUTQ(d)::QAB(B)
- P(l);::P=Q
- B(c);S_CUTQ(d)::B(J),XP(l)
- S(a);OGATE::R(A)
- S(a);S_CUTQ(d)::R1(F)
- P(f);N_GUARD,S_CUTQ(d)::QAR2(B)
- P(h);S_CUTQ(d)::R1(F)
- P(m);N_GUARD,S_CUTQ(d)::S(E)
- P(m);N_GUARD::S(G)
Developed and maintained by Brian Stephenson.
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