MESON Chess Problem Database
Problem Display
PID: 142657 (2n1NR2/p2pp3/N3k3/bp1p3p/n2P1pb1/7B/5K2/2Q5 w - - 0 1)
Williams, Philip Hamilton
British Chess Magazine, 1892
#2
7 + 12
SOLUTION
- SOUND
- Sets
- 1...Bf5
- 2.Bxf5#
- 1...Be1+
- 2.Qxe1#
- 1...Bd2
- 2.Sac7#
- 1...Bc3
- 2.Sac7#
- 1...Bb4
- 2.Sac7#
- 1...Bb6
- 2.Qe1#
- 1...Bc7
- 2.Saxc7#
- 1...Bd8
- 2.Qe1#
- 1...Sb2
- 2.Sc5#
- 1...Sc3
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sab6
- 2.Sc5#
- 2.Sac7#
- 1...Scb6
- 2.Sac7#
- 1...Sd6
- 2.Sg7#
- 1...f3
- 2.Qe3#
- 2.Qh6#
- 1...b4
- 2.Qe1#
- 1...h4
- 2.Bxg4#
- 1...d6
- 2.Qxc8#
- 1...Bf5
- Tries
- 1.Kf1?
- 1...d6
- 2.Qxc8#
- 1...Bf5
- 2.Bxf5#
- 1...Be1
- 2.Sac7#
- 2.Qxe1#
- 1...Bd2
- 2.Sac7#
- 1...Bc3
- 2.Sac7#
- 1...Bb4
- 2.Sac7#
- 1...Bb6
- 2.Qe1#
- 1...Bc7
- 2.Saxc7#
- 1...Bd8
- 2.Qe1#
- 1...Sb2
- 2.Sc5#
- 1...Sc3
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sab6
- 2.Sc5#
- 2.Sac7#
- 1...Scb6
- 2.Sac7#
- 1...Sd6
- 2.Sg7#
- 1...f3
- 2.Qe3#
- 2.Qh6#
- 1...b4
- 2.Qe1#
- 1...h4
- 2.Bxg4#
- 1...Bxh3+!
- 1...d6
- 1.Kg1?
- 1...d6
- 2.Qxc8#
- 1...Bf5
- 2.Bxf5#
- 1...Be1
- 2.Sac7#
- 2.Qxe1#
- 1...Bd2
- 2.Sac7#
- 1...Bc3
- 2.Sac7#
- 1...Bb4
- 2.Sac7#
- 1...Bb6
- 2.Qe1#
- 1...Bc7
- 2.Saxc7#
- 1...Bd8
- 2.Qe1#
- 1...Sb2
- 2.Sc5#
- 1...Sc3
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sab6
- 2.Sc5#
- 2.Sac7#
- 1...Scb6
- 2.Sac7#
- 1...Sd6
- 2.Sg7#
- 1...f3
- 2.Qe3#
- 2.Qh6#
- 1...b4
- 2.Qe1#
- 1...h4
- 2.Bxg4#
- 1...Bxh3!
- 1...d6
- 1.Rxf4?
- threat
- 2.Qe3#
- 1...Be1+
- 2.Qxe1#
- 1...d6
- 2.Qxc8#
- 1...Bd2
- 2.Sac7#
- 1...Bc7
- 2.Saxc7#
- 1...Sc3
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sd6
- 2.Sg7#
- 1...Bf5!
- threat
- 1.Qd2?
- threat
- 2.Qe2#
- 1...Bxd2
- 2.Sac7#
- 1...Bc7
- 2.Saxc7#
- 1...Sc3
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sd6
- 2.Sg7#
- 1...f3
- 2.Qe3#
- 2.Qh6#
- 1...d6!
- threat
- 1.Qb1?
- threat
- 2.Qg6#
- 1...Be1+
- 2.Qxe1#
- 1...Bf5
- 2.Bxf5#
- 2.Qxf5#
- 1...d6!
- threat
- 1.Qc2?
- threat
- 2.Qg6#
- 2.Qe2#
- 1...d6
- 2.Qxc8#
- 1...f3
- 2.Qg6#
- 1...Bf5
- 2.Bxf5#
- 2.Qxf5#
- 2.Qe2#
- 1...Bd2
- 2.Sac7#
- 2.Qg6#
- 1...Bc7
- 2.Saxc7#
- 2.Qg6#
- 1...Sc3
- 2.Sc5#
- 2.Qg6#
- 1...Sc5
- 2.Sxc5#
- 2.Qg6#
- 1...Sd6
- 2.Sg7#
- 2.Qg6#
- 1...Be1+!
- threat
- 1.Qc5?
- threat
- 2.Sg7#
- 1...Sxc5
- 2.Sxc5#
- 1...d6
- 2.Qxc8#
- 1...Be1+!
- threat
- 1.Qc6+?
- 1...Sd6
- 2.Sg7#
- 1...d6
- 2.Sg7#
- 2.Qxc8#
- 1...dxc6!
- 1...Sd6
- 1.Qc7?
- threat
- 2.Sg7#
- 2.Qe5#
- 1...Bxc7
- 2.Saxc7#
- 1...Sd6
- 2.Sg7#
- 1...d6
- 2.Sg7#
- 2.Qxc8#
- 1...Be1+!
- threat
- 1.Kf1?
- Keys
- 1.Qc3!
- 1...Bxh3
- 2.Qxh3#
- 1...Bxc3
- 2.Sac7#
- 1...Sxc3
- 2.Sc5#
- 1...d6
- 2.Qxc8#
- 1...f3
- 2.Qe3#
- 1...Bf5
- 2.Bxf5#
- 1...Bb4
- 2.Sac7#
- 1...Bb6
- 2.Qe1#
- 1...Bc7
- 2.Saxc7#
- 1...Bd8
- 2.Qe1#
- 1...Sb2
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sab6
- 2.Sc5#
- 2.Sac7#
- 1...Scb6
- 2.Sac7#
- 1...Sd6
- 2.Sg7#
- 1...b4
- 2.Qe1#
- 1...h4
- 2.Bxg4#
- 1...Bxh3
- 1.Qc3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- B(c);OGATE::B(C),XB(c)
- B(d);CHECK,N_GUARD::QAR(A),XB(d)
- B(d);N_GUARD::S(E)
- B(d);N_GUARD,P_PINP(D)::QAR(A)
- B(d);N_GUARD::S(E),XB(d)
- B(d);N_GUARD::QAR(A)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(l);S_CUTB(d)::S(E)
- S(l);SBLOCK::S(F)
- P(e);S_CUTB(d)::QAR(A)
- P(g);N_GUARD::B(C),XB(c)
- P(j);OGATEB::QAB(A),XS(l)
- Tries
- Try
- K(B);P-FLIGHT
- Vars
- P(j);OGATEB::QAB(A),XS(l)
- B(c);OGATE::B(C),XB(c)
- B(d);N_GUARD::S(E)
- B(d);N_GUARD::QAR(A)
- B(d);N_GUARD::S(E),XB(d)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(l);S_CUTB(d)::S(E)
- S(l);SBLOCK::S(F)
- P(e);S_CUTB(d)::QAR(A)
- P(g);N_GUARD::B(C),XB(c)
- Refutation
- B(c);CHECK,N_SPINB(c),XB(C)
- Try
- K(B);S_FLIGHT
- Vars
- P(j);OGATEB::QAB(A),XS(l)
- B(c);OGATE::B(C),XB(c)
- B(d);N_GUARD::S(E)
- B(d);N_GUARD,P_PINP(D)::QAR(A)
- B(d);N_GUARD::S(E),XB(d)
- B(d);N_GUARD::QAR(A)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(l);S_CUTB(d)::S(E)
- S(l);SBLOCK::S(F)
- P(e);S_CUTB(d)::QAR(A)
- P(g);N_GUARD::B(C),XB(c)
- Refutation
- B(c);N_SPINB(c),XB(C)
- Try
- R(G);XP(b)
- Threat
- QAR(A)
- Vars
- B(d);CHECK,N_GUARD::QAR(A),XB(d)
- P(j);OGATEB::QAB(A),XS(l)
- B(d);N_GUARD::S(E)
- B(d);N_GUARD::S(E),XB(d)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(l);SBLOCK::S(F)
- Refutation
- B(c);
- Try
- Q(A);
- Threat
- QAR(A)
- Vars
- B(d);N_GUARD,XQ(A)::S(E)
- B(d);N_GUARD::S(E),XB(d)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(l);SBLOCK::S(F)
- Refutation
- P(j);
- Try
- Q(A);
- Threat
- QAR2(A)
- Vars
- B(d);CHECK,N_GUARD::QAR(A),XB(d)
- Refutation
- P(j);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- P(j);OGATEB::QAB(A),XS(l)
- P(b);::QAR2(A)
- Refutation
- B(d);CHECK
- Try
- Q(A);
- Threat
- S(F)
- Vars
- S(a);XQ(A)::S(E),XS(a)
- P(j);OGATEB::QAB(A),XS(l)
- Refutation
- B(d);CHECK
- Try
- Q(A);CHECK
- Vars
- S(l);P_SPINS(l)::S(F)
- Refutation
- P(j);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- B(d);XQ(A)::S(E),XB(d)
- S(l);::S(F)
- Refutation
- B(d);CHECK
- Try
- Actual
- Q(A);
- Vars
- B(c);N_SPINB(c),OGATE,XB(C)::QAB(A),XB(c)
- B(d);N_GUARD,XQ(A)::S(E)
- S(a);N_GUARD,XQ(A)::S(E)
- P(j);OGATEB::QAB(A),XS(l)
- P(b);N_GUARD::QAR(A)
- B(c);OGATE::B(C),XB(c)
- B(d);N_GUARD::S(E)
- B(d);N_GUARD,P_PINP(D)::QAR(A)
- B(d);N_GUARD::S(E),XB(d)
- B(d);N_GUARD::QAR(A)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- S(l);S_CUTB(d)::S(E)
- S(l);SBLOCK::S(F)
- P(e);S_CUTB(d)::QAR(A)
- P(g);N_GUARD::B(C),XB(c)
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).