MESON Chess Problem Database
Problem Display
PID: 73382 (5nKB/8/1Qp1N1N1/2Pkp1qR/b2P1b2/3P4/6R1/7B w - - 0 1)
Buchwald, Julius
6th Prize, Het Belgisch Schaakbord (L'Echiquier Belge), 1946
#2
11 + 7
| 5759 | Selected Compositions of Julius Buchwald | 2005 |
SOLUTION
- SOUND
- Sets
- 1...Qe7
- 2.Sgxf4#
- 1...Qd8
- 2.Sgxf4#
- 1...Qxg6+
- 2.Rxg6#
- 1...Bb3
- 2.Qxb3#
- 1...exd4
- 2.Sxf4#
- 2.Re2#
- 1...e4
- 2.Sxf4#
- 1...Qe7
- Tries
- 1.Rg3+?
- 1...e4
- 2.Sxf4#
- 1...Kxe6!
- 1...e4
- 1.Rg4+?
- 1...e4
- 2.Sxf4#
- 1...Kxe6!
- 1...e4
- 1.Qd8+?
- 1...Qxd8
- 2.Sgxf4#
- 1...Sd7
- 2.Qxd7#
- 1...Kxe6!
- 1...Qxd8
- 1.Qb2?
- threat
- 2.Sc7#
- 1...Qxg6+
- 2.Rxg6#
- 1...Sxe6
- 2.Rgxg5#
- 1...exd4
- 2.Re2#
- 1...Qe7
- 2.Sexf4#
- 2.Sgxf4#
- 1...Qd8
- 2.Sexf4#
- 2.Sgxf4#
- 1...e4
- 2.Sxf4#
- 1...Kxe6!
- threat
- 1.Qb4?
- threat
- 2.Sc7#
- 2.Qc4#
- 1...Qxg6+
- 2.Rxg6#
- 1...Sxe6
- 2.Rgxg5#
- 2.Qc4#
- 1...exd4
- 2.Sxf4#
- 2.Re2#
- 2.Qc4#
- 1...Qe7
- 2.Sexf4#
- 2.Sgxf4#
- 2.Qc4#
- 1...Qd8
- 2.Sexf4#
- 2.Sgxf4#
- 2.Qc4#
- 1...Bb3
- 2.Sc7#
- 2.Qxb3#
- 1...Bb5
- 2.Sc7#
- 1...e4
- 2.Sxf4#
- 2.Qc4#
- 1...Kxe6!
- threat
- 1.Qb8?
- threat
- 2.Qd6#
- 1...Qxg6+
- 2.Rxg6#
- 1...exd4
- 2.Re2#
- 1...Qe7
- 2.Sgxf4#
- 1...Qd8
- 2.Sgxf4#
- 1...e4
- 2.Sxf4#
- 1...Kxe6!
- threat
- 1.Rg3+?
- Keys
- 1.Qc7!
- threat
- 2.Qd6#
- 1...Qxg6+
- 2.Rxg6#
- 1...Kxe6
- 2.Qf7#
- 1...exd4
- 2.Re2#
- 1...Qe7
- 2.Sgxf4#
- 1...Qd8
- 2.Sgxf4#
- 1...e4
- 2.Sxf4#
- threat
- 1.Qc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- Q(e);N_PINS(I),P_SPINP(d)::S(I),XB(b)
- Q(e);CHECK,OGATE,P_SPINP(d),XS(I)::B(A)+R(B),XQ(e)
- B(a);N_GUARD::QAB(G),XB(a)
- P(d);N_GUARD,P_SPINQ(e)::S(H),XB(b)
- Tries
- Try
- R(B);CHECK
- Vars
- P(d);P_SPINP(d),P_SPINQ(e)::S(H),XB(b)
- Refutation
- K(c);P_SPINP(f),S_FLIGHT,XS(H)
- Try
- R(B);CHECK
- Vars
- P(d);P_SPINP(d),P_SPINQ(e)::S(H),XB(b)
- Refutation
- K(c);P_SPINP(f),S_FLIGHT,XS(H)
- Try
- Q(G);CHECK
- Vars
- Q(e);N_PINS(I),P_SPINP(d),XQ(G)::S(I),XB(b)
- S(g);N_GUARD,P_SPINS(g)::QAR2(G),XS(g)
- Refutation
- K(c);S_FLIGHT,XS(H)
- Try
- Q(G);
- Threat
- S(H)
- Vars
- Q(e);CHECK,OGATE,P_SPINP(d),XS(I)::B(A)+R(B),XQ(e)
- S(g);SBLOCK,XS(H)::B(A)+R(B),XQ(e)
- P(d);N_GUARD,P_SPINQ(e),XP(D)::B(A)+R(B)
- P(d);N_GUARD,P_SPINQ(e)::S(H),XB(b)
- Refutation
- K(c);S_FLIGHT,XS(H)
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- Q(e);CHECK,OGATE,P_SPINP(d),XS(I)::B(A)+R(B),XQ(e)
- B(a);::S(H)
- Refutation
- K(c);S_FLIGHT,XS(H)
- Try
- Q(G);
- Threat
- QAR1(G)
- Vars
- Q(e);CHECK,OGATE,P_SPINP(d),XS(I)::B(A)+R(B),XQ(e)
- P(d);N_GUARD,P_SPINQ(e),XP(D)::B(A)+R(B)
- Q(e);N_PINS(I),P_SPINP(d)::S(I),XB(b)
- P(d);N_GUARD,P_SPINQ(e)::S(H),XB(b)
- Refutation
- K(c);S_FLIGHT,XS(H)
- Try
- Actual
- Q(G);
- Threat
- QAR1(G)
- Vars
- Q(e);CHECK,OGATE,P_SPINP(d),XS(I)::B(A)+R(B),XQ(e)
- K(c);OGATEB,S_FLIGHT,XS(H)::QAB1(G)
- P(d);N_GUARD,P_SPINQ(e),XP(D)::B(A)+R(B)
- Q(e);N_PINS(I),P_SPINP(d)::S(I),XB(b)
- P(d);N_GUARD,P_SPINQ(e)::S(H),XB(b)
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