MESON Chess Problem Database
Problem Display
PID: 10422 (5r2/pbQ1R1B1/p4pp1/8/qnNk4/p1p2BK1/n3PP2/N1R5 w - - 0 1)
Goldschmeding, Cornelis
2nd Prize, Probleemblad, 1964
#2
10 + 12
| 3747 | FIDE Album (1962-1964) | 1968 |
| 5862 | An ABC of Chess Problems | 1970 |
| 102 | Probleemblad | 2002 |
SOLUTION
- SOUND
- Sets
- 1...Qb3
- 2.Sxb3#
- 1...Qb5
- 2.Sb3#
- 1...Qd7
- 2.Sb3#
- 1...Qe8
- 2.Sb3#
- 1...Qa5
- 2.Sb3#
- 1...Ra8
- 2.Bxf6#
- 1...Rb8
- 2.Bxf6#
- 1...Rc8
- 2.Bxf6#
- 1...Rd8
- 2.Bxf6#
- 1...Re8
- 2.Bxf6#
- 1...Rg8
- 2.Bxf6#
- 1...Rh8
- 2.Bxf6#
- 1...Sc2
- 2.Rd1#
- 1...Sd3
- 2.e3#
- 1...Sd5
- 2.Re4#
- 1...Qb3
- Tries
- 1.Sc2+?
- 1...Sxc2
- 2.Rd1#
- 1...Qxc2!
- 1...Sxc2
- 1.Sb2?
- threat
- 2.Qc4#
- 2.e3#
- 1...Bxf3
- 2.Qc4#
- 1...cxb2
- 2.Rc4#
- 2.Qc4#
- 2.Qc5#
- 1...Qc6
- 2.Sb3#
- 1...Be4
- 2.Qc4#
- 1...Bc6
- 2.Qxa7#
- 1...Sc6
- 2.Qd6#
- 1...Qb3
- 2.Sxb3#
- 2.e3#
- 1...Qb5
- 2.Sb3#
- 2.e3#
- 1...Rc8
- 2.Bxf6#
- 2.e3#
- 1...Bd5
- 2.Qxa7#
- 2.e3#
- 1...Sc2
- 2.Rd1#
- 1...Sd3
- 2.e3#
- 1...Sd5
- 2.Re4#
- 1...axb2!
- threat
- 1.Sd2?
- threat
- 2.Qc4#
- 1...Qc6
- 2.Sab3#
- 1...Bc6
- 2.Qxa7#
- 1...Sc6
- 2.Qd6#
- 1...Qb3
- 2.Saxb3#
- 2.Sdxb3#
- 1...Qb5
- 2.Sab3#
- 2.Sdb3#
- 1...Rc8
- 2.Bxf6#
- 1...Bd5
- 2.Qxa7#
- 1...Sd3
- 2.e3#
- 1...Sd5
- 2.Re4#
- 1...Sc2!
- threat
- 1.Sxa3?
- threat
- 2.Qc4#
- 1...Qc6
- 2.Sb3#
- 1...Bc6
- 2.Qxa7#
- 1...Sc6
- 2.Qd6#
- 1...Qb3
- 2.Sxb3#
- 1...Qb5
- 2.Sb3#
- 1...Rc8
- 2.Bxf6#
- 1...Bd5
- 2.Qxa7#
- 1...Sc2
- 2.Rd1#
- 1...Sd3
- 2.e3#
- 1...Sd5
- 2.Re4#
- 1...Qxa3!
- threat
- 1.Se3?
- threat
- 2.Qc4#
- 1...Qc6
- 2.Sb3#
- 1...Bc6
- 2.Qxa7#
- 1...Sc6
- 2.Qd6#
- 1...Qb3
- 2.Sxb3#
- 1...Qb5
- 2.Sb3#
- 1...Rc8
- 2.Bxf6#
- 1...Bd5
- 2.Qxa7#
- 1...Sc2
- 2.Rd1#
- 1...Sd5
- 2.Re4#
- 1...Sd3!
- threat
- 1.Se5?
- threat
- 2.Qc4#
- 2.e3#
- 1...Bxf3
- 2.Qc4#
- 1...fxe5
- 2.Bxe5#
- 1...Qc6
- 2.Sb3#
- 1...Be4
- 2.Qc4#
- 1...Bc6
- 2.Qxa7#
- 1...Sc6
- 2.Qd6#
- 1...Qb3
- 2.Sxb3#
- 2.e3#
- 1...Qb5
- 2.Sb3#
- 2.e3#
- 1...Rc8
- 2.e3#
- 1...Bd5
- 2.Qxa7#
- 2.e3#
- 1...Sc2
- 2.Rd1#
- 1...Sd3
- 2.e3#
- 1...Sd5!
- threat
- 1.Sd6?
- threat
- 2.Qc4#
- 1...Qc6
- 2.Sb3#
- 1...Bc6
- 2.Qxa7#
- 1...Qb3
- 2.Sxb3#
- 1...Qb5
- 2.Sb3#
- 1...Rc8
- 2.Bxf6#
- 1...Bd5
- 2.Qxa7#
- 1...Sc2
- 2.Rd1#
- 1...Sd3
- 2.e3#
- 1...Sd5
- 2.Re4#
- 1...Sc6!
- threat
- 1.Rd1+?
- 1...Sd3
- 2.Rxd3#
- 2.e3#
- 1...Qxd1!
- 1...Sd3
- 1.Re4+?
- 1...Kd5
- 2.Se3#
- 2.Qd6#
- 1...Bxe4!
- 1...Kd5
- 1.Qd6+?
- 1...Bd5
- 2.Re4#
- 1...Sd5
- 2.Re4#
- 1...Kxc4!
- 1...Bd5
- 1.Sc2+?
- Keys
- 1.Sa5!
- threat
- 2.Qc4#
- 1...Qxa5
- 2.Sb3#
- 1...Qc6
- 2.S1b3#
- 1...Bc6
- 2.Qxa7#
- 1...Sc6
- 2.Qd6#
- 1...Qb3
- 2.S1xb3#
- 2.S5xb3#
- 1...Qb5
- 2.S1b3#
- 2.S5b3#
- 1...Rc8
- 2.Bxf6#
- 1...Bd5
- 2.Qxa7#
- 1...Sc2
- 2.Rd1#
- 1...Sd3
- 2.e3#
- 1...Sd5
- 2.Re4#
- threat
- 1.Sa5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 10
- Sets
- Q(d);N_GUARD::S(A),XQ(d)
- Q(d);N_GUARD::S(A)
- R(l);N_GUARD::B(J),XP(h)
- S(e);N_GUARD,S_CUTQ(d)::R(B)
- S(e);SBLOCK::P(C)
- S(e);SBLOCK,S_CUTB(k)::R1(I)
- Tries
- Try
- S(A);CHECK
- Vars
- S(e);XS(A)::R(B)
- Refutation
- Q(d);XS(A)
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- B(k);XB(E)::QAR1(H)
- Q(d);N_GUARD::S(A)
- B(k);::QAR1(H)
- B(k);OGATE::QAB(H),XP(j)
- S(e);N_GUARD,S_CUTB(k)::QAR2(H)
- S(e);N_GUARD,S_CUTQ(d)::R(B)
- S(e);::P(C)
- S(e);SBLOCK,S_CUTB(k)::R1(I)
- Refutation
- P(b);XS(G)
- Try
- S(G);
- Threat
- QAR1(H)
- Vars
- Q(d);N_GUARD::S(A)
- B(k);OGATE::QAB(H),XP(j)
- S(e);N_GUARD,S_CUTB(k)::QAR2(H)
- R(l);N_GUARD::B(J),XP(h)
- S(e);SBLOCK::P(C)
- S(e);SBLOCK,S_CUTB(k)::R1(I)
- Refutation
- S(e);
- Try
- S(G);XP(b)
- Threat
- QAR1(H)
- Vars
- Q(d);N_GUARD::S(A)
- B(k);OGATE::QAB(H),XP(j)
- S(e);N_GUARD,S_CUTB(k)::QAR2(H)
- Q(d);N_GUARD::S(A),XQ(d)
- R(l);N_GUARD::B(J),XP(h)
- S(e);N_GUARD,S_CUTQ(d)::R(B)
- S(e);SBLOCK::P(C)
- S(e);SBLOCK,S_CUTB(k)::R1(I)
- Refutation
- Q(d);XS(G)
- Try
- S(G);
- Threat
- QAR1(H)
- Vars
- Q(d);N_GUARD::S(A)
- B(k);OGATE::QAB(H),XP(j)
- S(e);N_GUARD,S_CUTB(k)::QAR2(H)
- Q(d);N_GUARD::S(A),XQ(d)
- R(l);N_GUARD::B(J),XP(h)
- S(e);N_GUARD,S_CUTQ(d)::R(B)
- S(e);S_CUTB(k)::R1(I)
- Refutation
- S(e);
- Try
- S(G);N_PINP(h)
- Threat
- DUALS(2)
- Vars
- B(k);XB(E)::QAR1(H)
- P(h);OGATE,P_SPINP(h),XS(G)::B(J),XP(h)
- Q(d);N_GUARD::S(A)
- B(k);::QAR1(H)
- B(k);OGATE::QAB(H),XP(j)
- S(e);N_GUARD,S_CUTB(k)::QAR2(H)
- R(l);::P(C)
- S(e);N_GUARD,S_CUTQ(d)::R(B)
- S(e);::P(C)
- Refutation
- S(e);
- Try
- S(G);
- Threat
- QAR1(H)
- Vars
- Q(d);N_GUARD::S(A)
- B(k);OGATE::QAB(H),XP(j)
- Q(d);N_GUARD::S(A),XQ(d)
- R(l);N_GUARD::B(J),XP(h)
- S(e);N_GUARD,S_CUTQ(d)::R(B)
- S(e);SBLOCK::P(C)
- S(e);SBLOCK,S_CUTB(k)::R1(I)
- Refutation
- S(e);
- Try
- R(B);CHECK
- Refutation
- Q(d);XR(B)
- Try
- R(I);CHECK
- Refutation
- B(k);XR(I)
- Try
- Q(H);CHECK
- Vars
- B(k);P_SPINB(k)::R1(I)
- S(e);P_SPINS(e)::R1(I)
- Refutation
- K(f);N_SPINP(h),P-FLIGHT,P_SPINP(c),XS(G)
- Try
- Actual
- S(G);
- Threat
- QAR1(H)
- Vars
- Q(d);N_GUARD,XS(G)::S(A)
- Q(d);N_GUARD::S(A)
- B(k);OGATE::QAB(H),XP(j)
- S(e);N_GUARD,S_CUTB(k)::QAR2(H)
- R(l);N_GUARD::B(J),XP(h)
- S(e);N_GUARD,S_CUTQ(d)::R(B)
- S(e);SBLOCK::P(C)
- S(e);SBLOCK,S_CUTB(k)::R1(I)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).