MESON Chess Problem Database
Problem Display
PID: 156710 (n2B1N2/2p2pp1/2R2PP1/q1n1kN2/1p2B1p1/1P2R1PP/2P2P2/5Q1K w - - 0 1)
Mackenzie, Arthur Ford
Source?, 0000
#2
15 + 9
| 15 | British Chess Magazine | 1905 |
SOLUTION
- SOUND
- Sets
- 1...Qb6
- 2.Qa1#
- 1...Qa1
- 2.Rxc5#
- 2.Qxa1#
- 1...Qa2
- 2.Rxc5#
- 1...Qa3
- 2.Rxc5#
- 1...Qa4
- 2.Rxc5#
- 1...Qb5
- 2.Qa1#
- 1...Qa6
- 2.Rxc5#
- 1...Sxb3
- 2.Sd7#
- 1...Sd3
- 2.Sd7#
- 1...Sa4
- 2.Sd7#
- 1...Sa6
- 2.Sd7#
- 1...Se6
- 2.Sd7#
- 1...Sb7
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sb6
- 2.Bxc7#
- 1...gxh3
- 2.f4#
- 1...fxg6
- 2.Sxg6#
- 1...gxf6
- 2.Bxf6#
- 1...Qb6
- Tries
- 1.Bxc7+?
- 1...Qxc7
- 2.Qa1#
- 1...Sxc7!
- 1...Qxc7
- 1.Re6+?
- 1...Sxe6
- 2.Sd7#
- 1...fxe6!
- 1...Sxe6
- 1.Qd3?
- threat
- 2.Qd4#
- 2.Qd5#
- 1...Sxb3
- 2.Sd7#
- 2.Bg2#
- 2.Bf3#
- 2.Bd5#
- 1...Sxd3
- 2.Sd7#
- 1...Sxe4
- 2.Qxe4#
- 1...Sa4
- 2.Sd7#
- 2.Bg2#
- 2.Bf3#
- 2.Bd5#
- 2.Qd4#
- 1...Sa6
- 2.Sd7#
- 2.Bg2#
- 2.Bf3#
- 2.Bd5#
- 2.Qd4#
- 1...Se6
- 2.Sd7#
- 2.Bg2#
- 2.Bf3#
- 2.Bd5#
- 1...Sb7
- 2.Sd7#
- 2.Bg2#
- 2.Bf3#
- 2.Bd5#
- 2.Qd4#
- 1...Sd7
- 2.Sxd7#
- 2.Bg2#
- 2.Bf3#
- 2.Bd5#
- 2.Qd4#
- 1...Sb6
- 2.Bxc7#
- 2.Qd4#
- 1...Qa1+!
- threat
- 1.Qc4?
- threat
- 2.Qd5#
- 2.Qd4#
- 1...Sxb3
- 2.Sd7#
- 2.Bd3#
- 1...Sxe4
- 2.Qxe4#
- 1...Sd3
- 2.Sd7#
- 2.Bxd3#
- 2.Qd4#
- 1...Sa4
- 2.Sd7#
- 2.Bd3#
- 2.Qd4#
- 1...Sa6
- 2.Sd7#
- 2.Bd3#
- 2.Qd4#
- 1...Se6
- 2.Sd7#
- 2.Bd3#
- 1...Sb7
- 2.Sd7#
- 2.Bd3#
- 2.Qd4#
- 1...Sd7
- 2.Sxd7#
- 2.Bd3#
- 2.Qd4#
- 1...Sb6
- 2.Bxc7#
- 2.Qd4#
- 1...Qa1+!
- threat
- 1.Qb1?
- threat
- 2.Qb2#
- 1...Sxb3
- 2.Sd7#
- 1...Qa1
- 2.Rxc5#
- 2.Qxa1#
- 1...Qa2
- 2.Rxc5#
- 1...Qa3
- 2.Rxc5#
- 1...Sd3
- 2.Sd7#
- 1...Sa4
- 2.Sd7#
- 1...Se6
- 2.Sd7#
- 1...Sxe4!
- threat
- 1.Qc1?
- threat
- 2.Qb2#
- 1...Sxb3
- 2.Sd7#
- 1...Qa1
- 2.Rxc5#
- 2.Qxa1#
- 1...Qa2
- 2.Rxc5#
- 1...Qa3
- 2.Rxc5#
- 1...Sd3
- 2.Sd7#
- 1...Sa4
- 2.Sd7#
- 1...Se6
- 2.Sd7#
- 1...Sxe4!
- threat
- 1.Qd1?
- threat
- 2.Qd4#
- 2.Qd5#
- 1...Sxb3
- 2.Sd7#
- 1...Qa1
- 2.Rxc5#
- 2.Qxa1#
- 1...Sd3
- 2.Sd7#
- 1...Sa4
- 2.Sd7#
- 2.Qd4#
- 1...Sa6
- 2.Sd7#
- 2.Qd4#
- 1...Se6
- 2.Sd7#
- 1...Sb7
- 2.Sd7#
- 2.Qd4#
- 1...Sd7
- 2.Sxd7#
- 2.Qd4#
- 1...Sb6
- 2.Bxc7#
- 2.Qd4#
- 1...Sxe4!
- threat
- 1.hxg4?
- threat
- 2.f4#
- 1...Sd3
- 2.Sd7#
- 2.Bg2#
- 2.Bf3#
- 1...Se6
- 2.Sd7#
- 2.Bg2#
- 2.Bf3#
- 1...Sxe4!
- threat
- 1.fxg7?
- threat
- 2.Bf6#
- 1...Se6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...f6
- 2.Bxf6#
- 1...Sxe4!
- threat
- 1.gxf7?
- threat
- 2.Sg6#
- 1...g6
- 2.Sxg6#
- 1...Sxe4!
- threat
- 1.Bxc7+?
- Keys
- 1.Qa6!
- 1...Qa1+
- 2.Qxa1#
- 1...Qxa6
- 2.Rxc5#
- 1...Sxb3
- 2.Sd7#
- 1...Sxe4
- 2.Qxa5#
- 1...Sxa6
- 2.Sd7#
- 1...gxh3
- 2.f4#
- 1...fxg6
- 2.Sxg6#
- 1...gxf6
- 2.Bxf6#
- 1...Qb6
- 2.Qa1#
- 1...Qa2
- 2.Rxc5#
- 1...Qa3
- 2.Rxc5#
- 1...Qa4
- 2.Rxc5#
- 1...Qb5
- 2.Qa1#
- 1...Sd3
- 2.Sd7#
- 1...Sa4
- 2.Sd7#
- 1...Se6
- 2.Sd7#
- 1...Sb7
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sb6
- 2.Bxc7#
- 1...Qa1+
- 1.Qa6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- Q(c);N_GUARD::QAB(A)
- Q(c);N_GUARD::R(K),XS(d)
- S(d);N_GUARD,XP(E)::S(O)
- S(d);N_GUARD::S(O)
- S(d);N_GUARD::S(O),XS(d)
- S(i);N_GUARD,S_CUTQ(c)::B(N),XP(f)
- P(b);N_GUARD,XP(H)::P(D)
- P(g);XP(M)::S(O),XP(g)
- P(h);OGATE,XP(L)::B(N),XP(h)
- Tries
- Try
- B(N);CHECK,XP(f)
- Vars
- Q(c);XB(N)::QAB(A)
- Refutation
- S(i);XB(N)
- Try
- R(K);CHECK
- Vars
- S(d);SBLOCK,XR(K)::S(O)
- Refutation
- P(g);XR(K)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(d);N_GUARD,XQ(A)::S(O)
- S(d);OGATE,P_SPINS(d),XB(I)::QAR1(A),XS(d)
- Refutation
- Q(c);CHECK
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(d);OGATE,P_SPINS(d),XB(I)::QAR1(A),XS(d)
- Refutation
- Q(c);CHECK
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- S(d);N_GUARD,XP(E)::S(O)
- Q(c);N_GUARD::R(K),XS(d)
- S(d);N_GUARD::S(O)
- Refutation
- S(d);P_SPINS(d),XB(I)
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- S(d);N_GUARD,XP(E)::S(O)
- Q(c);N_GUARD::R(K),XS(d)
- S(d);N_GUARD::S(O)
- Refutation
- S(d);P_SPINS(d),XB(I)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(d);N_GUARD,XP(E)::S(O)
- S(d);N_GUARD::S(O)
- Refutation
- S(d);P_SPINS(d),XB(I)
- Try
- P(H);XP(b)
- Threat
- P(D)
- Refutation
- S(d);P_SPINS(d),XB(I)
- Try
- P(L);XP(h)
- Threat
- B(N)
- Vars
- S(d);N_GUARD::S(O)
- S(d);N_GUARD::S(O),XS(d)
- P(g);::B(N),XP(g)
- Refutation
- S(d);P_SPINS(d),XB(I)
- Try
- P(M);XP(g)
- Threat
- S(O)
- Vars
- P(h);::S(O),XP(h)
- Refutation
- S(d);P_SPINS(d),XB(I)
- Try
- Actual
- Q(A);
- Vars
- Q(c);CHECK,OGATE::QAB(A),XQ(c)
- Q(c);N_GUARD,XQ(A)::R(K),XS(d)
- S(d);N_GUARD,XP(E)::S(O)
- S(d);OGATEB,P_SPINS(d),XB(I)::QAR(A),XQ(c)
- S(d);N_GUARD,XQ(A)::S(O)
- P(b);N_GUARD,XP(H)::P(D)
- P(g);XP(M)::S(O),XP(g)
- P(h);OGATE,XP(L)::B(N),XP(h)
- Q(c);OGATE::QAB(A)
- Q(c);N_GUARD::R(K),XS(d)
- S(d);N_GUARD::S(O)
- S(d);N_GUARD::S(O),XS(d)
- S(i);N_GUARD,S_CUTQ(c)::B(N),XP(f)
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).