MESON Chess Problem Database
Problem Display
PID: 214555 (Q3r3/2P5/1N1R2p1/2P1k1p1/qn2PpK1/5P2/B2nN3/8 w - - 0 1)
Stafford, JA
Cincinnati Commercial, 1880
#2
10 + 8
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Sd7#
- 2.Qxe8#
- 1...Qc2
- 2.Sd7#
- 2.Qxe8#
- 1...Qb3
- 2.Sd7#
- 1...Qd7+
- 2.Sxd7#
- 1...Qxa2
- 2.Sd7#
- 1...Qa3
- 2.Sd7#
- 2.Qxe8#
- 1...Qa5
- 2.Sd7#
- 2.Qxe8#
- 1...Qa6
- 2.Sd7#
- 2.Qxe8#
- 1...Qa7
- 2.Sd7#
- 2.Qxe8#
- 1...Qxa8
- 2.Sd7#
- 1...Re6
- 2.Rxe6#
- 1...Rxa8
- 2.Re6#
- 1...Rb8
- 2.Re6#
- 1...Rc8
- 2.Re6#
- 1...Rd8
- 2.Re6#
- 1...Rf8
- 2.Re6#
- 1...Rg8
- 2.Re6#
- 1...Rh8
- 2.Re6#
- 2.Qxh8#
- 1...Sb1
- 2.Sc4#
- 1...Sf1
- 2.Sc4#
- 1...Sb3
- 2.Sc4#
- 1...Sxf3
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sxe4
- 2.Sc4#
- 2.Qxe4#
- 1...Sxa2
- 2.Qd5#
- 1...Sc2
- 2.Qd5#
- 1...Sd3
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sa6
- 2.Qd5#
- 1...Sc6
- 2.Sd7#
- 1...Qd1
- Tries
- 1.Bb3?
- 1...Qd7+
- 2.Sxd7#
- 1...Qxb3
- 2.Sd7#
- 1...Qxa8
- 2.Sd7#
- 1...Rxa8
- 2.Re6#
- 1...Sxb3
- 2.Sc4#
- 1...Sxf3
- 2.Sc4#
- 1...Sxe4
- 2.Sc4#
- 2.Qxe4#
- 1...Re6
- 2.Rxe6#
- 1...Qb5
- 2.Qa1#
- 1...Qc6
- 2.Qa1#
- 1...Qa1
- 2.Sd7#
- 2.Qxa1#
- 2.Qxe8#
- 1...Qa2
- 2.Sd7#
- 2.Qxe8#
- 1...Qa3
- 2.Sd7#
- 2.Qxe8#
- 1...Qa5
- 2.Sd7#
- 2.Qxe8#
- 1...Qa6
- 2.Sd7#
- 2.Qxe8#
- 1...Qa7
- 2.Sd7#
- 2.Qxe8#
- 1...Rb8
- 2.Re6#
- 1...Rc8
- 2.Re6#
- 1...Rd8
- 2.Re6#
- 1...Rf8
- 2.Re6#
- 1...Rg8
- 2.Re6#
- 1...Rh8
- 2.Re6#
- 2.Qxh8#
- 1...Sb1
- 2.Sc4#
- 1...Sf1
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sa2
- 2.Qd5#
- 1...Sc2
- 2.Qd5#
- 1...Sd3
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sa6
- 2.Qd5#
- 1...Sc6
- 2.Sd7#
- 1...Re7!
- 1...Qd7+
- 1.Qxa4?
- threat
- 2.Sd7#
- 2.Qxe8#
- 1...Sxf3
- 2.Qxe8#
- 1...Re6
- 2.Sd7#
- 2.Rxe6#
- 1...Ra8
- 2.Sd7#
- 2.Re6#
- 1...Rb8
- 2.Sd7#
- 2.Re6#
- 1...Rc8
- 2.Sd7#
- 2.Re6#
- 1...Rd8
- 2.Re6#
- 1...Rf8
- 2.Sd7#
- 2.Re6#
- 1...Rg8
- 2.Sd7#
- 2.Re6#
- 1...Rh8
- 2.Sd7#
- 2.Re6#
- 1...Sd5
- 2.Sd7#
- 2.Qd4#
- 1...Sc6
- 2.Sd7#
- 1...Re7!
- threat
- 1.Qd8?
- threat
- 2.Qxg5#
- 2.Qf6#
- 1...Qd7+
- 2.Sxd7#
- 1...Rxd8
- 2.Re6#
- 1...Sxe4
- 2.Sc4#
- 1...Re7
- 2.Qxe7#
- 1...Re6
- 2.Rxe6#
- 2.Qxg5#
- 1...Rf8
- 2.Re6#
- 2.Qe7#
- 1...Sd5
- 2.Qxg5#
- 1...Sxf3!
- threat
- 1.Bb3?
- Keys
- 1.Bf7!
- 1...Qd7+
- 2.Sxd7#
- 1...Qxa8
- 2.Sd7#
- 1...Rxa8
- 2.Re6#
- 1...Sxf3
- 2.Sc4#
- 1...Sxe4
- 2.Sc4#
- 2.Qxe4#
- 1...Re6
- 2.Rxe6#
- 1...Re7
- 2.Qh8#
- 1...Qd1
- 2.Sd7#
- 2.Qxe8#
- 1...Qc2
- 2.Sd7#
- 2.Qxe8#
- 1...Qb3
- 2.Sd7#
- 1...Qb5
- 2.Qa1#
- 1...Qc6
- 2.Qa1#
- 1...Qa1
- 2.Sd7#
- 2.Qxa1#
- 2.Qxe8#
- 1...Qa2
- 2.Sd7#
- 1...Qa3
- 2.Sd7#
- 2.Qxe8#
- 1...Qa5
- 2.Sd7#
- 2.Qxe8#
- 1...Qa6
- 2.Sd7#
- 2.Qxe8#
- 1...Qa7
- 2.Sd7#
- 2.Qxe8#
- 1...Rb8
- 2.Re6#
- 1...Rc8
- 2.Re6#
- 1...Rd8
- 2.Re6#
- 1...Rf8
- 2.Re6#
- 1...Rg8
- 2.Re6#
- 1...Rh8
- 2.Re6#
- 2.Qxh8#
- 1...Sb1
- 2.Sc4#
- 1...Sf1
- 2.Sc4#
- 1...Sb3
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sa2
- 2.Qd5#
- 1...Sc2
- 2.Qd5#
- 1...Sd3
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sa6
- 2.Qd5#
- 1...Sc6
- 2.Sd7#
- 1...Qd7+
- 1.Bf7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Q(b);N_GUARD::S(G)
- Q(b);CHECK,N_GUARD::S(G),XQ(b)
- Q(b);N_GUARD,XB(A)::S(G)
- Q(b);N_GUARD,XQ(J)::S(G)
- R(h);N_GUARD::R1(H),XR(h)
- R(h);N_GUARD,XQ(J)::R1(H)
- R(h);N_GUARD::R1(H)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD,XP(C)::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(c);N_GUARD,XB(A)::QAR1(J)
- S(c);N_GUARD::QAR1(J)
- S(c);N_GUARD::QAR1(J),XS(c)
- S(c);S_CUTQ(b)::S(G)
- Tries
- Try
- B(A);
- Vars
- Q(b);CHECK,N_GUARD::S(G),XQ(b)
- Q(b);N_GUARD,XB(A)::S(G)
- Q(b);N_GUARD,XQ(J)::S(G)
- R(h);N_GUARD,XQ(J)::R1(H)
- S(a);N_GUARD,XB(A)::S(G)
- S(a);N_GUARD,XP(C)::S(G)
- R(h);N_GUARD::R1(H),XR(h)
- Q(b);OGATE::QAB(J)
- R(h);N_GUARD::R1(H)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(c);N_GUARD::QAR1(J)
- S(c);N_GUARD::QAR1(J),XS(c)
- S(c);S_CUTQ(b)::S(G)
- Refutation
- R(h);
- Try
- Q(J);XQ(b)
- Threat
- DUALS(2)
- Vars
- S(a);XP(C)::QAR(J),XR(h)
- R(h);N_GUARD::R1(H)
- S(c);::S(G)
- Refutation
- R(h);
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- Q(b);CHECK,N_GUARD::S(G),XQ(b)
- R(h);N_GUARD,XQ(J)::R1(H)
- S(a);N_GUARD,XP(D)::S(G)
- R(h);N_GUARD::QAR2(J),XR(h)
- S(c);::QAR2(J),XP(f)
- Refutation
- S(a);XP(C)
- Try
- Actual
- B(A);
- Vars
- Q(b);CHECK,N_GUARD::S(G),XQ(b)
- Q(b);N_GUARD,XQ(J)::S(G)
- R(h);N_GUARD,XQ(J)::R1(H)
- S(a);N_GUARD,XP(C)::S(G)
- R(h);N_GUARD::R1(H),XR(h)
- R(h);OGATE::QAB(J)
- Q(b);N_GUARD::S(G)
- Q(b);OGATE::QAB(J)
- R(h);N_GUARD::R1(H)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(c);N_GUARD::QAR1(J)
- S(c);N_GUARD::QAR1(J),XS(c)
- S(c);S_CUTQ(b)::S(G)
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).