MESON Chess Problem Database
Problem Display
PID: 231708 (1n5K/7p/7b/2RB4/1B1k1PQ1/4p2p/1nP4P/8 w - - 0 1)
Sparke, Arthur M
The Field, 1899
(First published on Sat Jan 7 1899)
#2
8 + 7
SOLUTION
- SOUND
- Sets
- 1...Bxf4
- 2.Qxf4#
- 1...Bg7+
- 2.Qxg7#
- 1...Sd1
- 2.Qxd1#
- 1...Sd3
- 2.c3#
- 1...Sa4
- 2.Qd1#
- 1...e2
- 2.Qg1#
- 1...Bxf4
- Tries
- 1.Rc4+?
- 1...Kxd5
- 2.Qg8#
- 1...Sxc4!
- 1...Kxd5
- 1.Qd1+?
- 1...Sd3
- 2.Qxd3#
- 2.c3#
- 1...Sxd1!
- 1...Sd3
- 1.Qf5?
- threat
- 2.Qe4#
- 2.Qe5#
- 2.Qf6#
- 2.c3#
- 1...Bxf4
- 2.Qe4#
- 2.Qxf4#
- 2.c3#
- 1...e2
- 2.Qe4#
- 2.Qe5#
- 1...Bg5
- 2.Qe4#
- 2.Qe5#
- 2.c3#
- 1...Sd1
- 2.Rc4#
- 2.Qd3#
- 2.Qe4#
- 2.Qe5#
- 2.Qf6#
- 1...Sd3
- 2.Rc4#
- 2.Qxd3#
- 2.Qe4#
- 2.c3#
- 1...Sa4
- 2.Rc4#
- 2.Qd3#
- 2.Qe4#
- 2.Qe5#
- 2.Qf6#
- 1...Sc4
- 2.Rxc4#
- 2.Qd3#
- 2.Qe4#
- 2.c3#
- 1...Sc6
- 2.Qe4#
- 2.c3#
- 1...Sd7
- 2.Qe4#
- 2.c3#
- 1...Bg7+!
- threat
- 1.Qe6?
- threat
- 2.Qe4#
- 2.Qe5#
- 2.Qf6#
- 1...Bxf4
- 2.Qe4#
- 1...Bg5
- 2.Qe4#
- 2.Qe5#
- 1...Sd3
- 2.Rc4#
- 2.Qe4#
- 2.c3#
- 1...Sc4
- 2.Rxc4#
- 2.Qe4#
- 1...Sc6
- 2.Qe4#
- 1...Sd7
- 2.Qe4#
- 1...e2
- 2.Qe4#
- 2.Qe5#
- 1...Bg7+!
- threat
- 1.Qg2?
- threat
- 2.Qe4#
- 1...Bg7+
- 2.Qxg7#
- 1...hxg2!
- threat
- 1.Qg6?
- threat
- 2.Qe4#
- 2.Qf6#
- 2.c3#
- 1...Bg7+
- 2.Qxg7#
- 1...Bxf4
- 2.Qe4#
- 1...e2
- 2.Qe4#
- 2.Qg1#
- 1...Bg5
- 2.Qe4#
- 2.c3#
- 1...Sd1
- 2.Qd3#
- 2.Qe4#
- 2.Qf6#
- 1...Sd3
- 2.Qxd3#
- 2.Qe4#
- 2.c3#
- 1...Sa4
- 2.Qd3#
- 2.Qe4#
- 2.Qf6#
- 1...Sc4
- 2.Qd3#
- 2.Qe4#
- 2.c3#
- 1...Sc6
- 2.Qe4#
- 2.c3#
- 1...Sd7
- 2.Qe4#
- 2.c3#
- 1...hxg6!
- threat
- 1.f5+?
- 1...Bf4
- 2.Qxf4#
- 1...Ke5!
- 1...Bf4
- 1.Rc4+?
- Keys
- 1.Bh1!
- 1...Bg7+
- 2.Qxg7#
- 1...Bxf4
- 2.Qxf4#
- 1...e2
- 2.Qg1#
- 1...Bg5
- 2.fxg5#
- 1...Bf8
- 2.f5#
- 1...Sd1
- 2.Qxd1#
- 1...Sd3
- 2.c3#
- 1...Sa4
- 2.Qd1#
- 1...Sc4
- 2.Rd5#
- 1...Sa6
- 2.Qd7#
- 1...Sc6
- 2.Qd7#
- 1...Sd7
- 2.Qxd7#
- 1...Bg7+
- 1.Bh1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- B(e);OGATE,P_SPINB(e),XP(D)::QAR2(E),XB(e)
- B(e);CHECK,N_GUARD::QAB(E),XB(e)
- S(a);N_GUARD::QAR(E),XS(a)
- S(a);SBLOCK::P(A)
- S(a);N_GUARD::QAR(E)
- P(b);OGATEB::QAB(E)
- Tries
- Try
- R(F);CHECK
- Vars
- K(d);P-FLIGHT,XB(G)::QAB(E)
- Refutation
- S(a);XR(F)
- Try
- Q(E);CHECK
- Refutation
- S(a);XQ(E)
- Try
- Q(E);
- Threat
- DUALS(4)
- Refutation
- B(e);CHECK
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- B(e);XP(D)::QAR1(E)
- S(g);::QAR1(E)
- Refutation
- B(e);CHECK
- Try
- Q(E);
- Threat
- QAR1(E)
- Vars
- B(e);CHECK,N_GUARD::QAB(E),XB(e)
- Refutation
- P(c);XQ(E)
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- B(e);CHECK,N_GUARD::QAB(E),XB(e)
- B(e);XP(D)::QAR1(E)
- Refutation
- P(f);XQ(E)
- Try
- P(D);CHECK
- Vars
- B(e);N_GUARD,P_SPINB(e)::QAR2(E),XB(e)
- Refutation
- K(d);S_FLIGHT
- Try
- Actual
- B(G);
- Vars
- B(e);CHECK,N_GUARD::QAB(E),XB(e)
- B(e);OGATE,P_SPINB(e),XP(D)::QAR2(E),XB(e)
- P(b);OGATEB::QAB(E)
- B(e);OGATE::QAR(E)+P(D),XB(e)
- B(e);N_GUARD::QAR(E)+P(D)
- S(a);N_GUARD::QAR(E),XS(a)
- S(a);SBLOCK::P(A)
- S(a);N_GUARD::QAR(E)
- S(a);SBLOCK::R1(F)
- S(g);N_GUARD::QAR(E)
- S(g);N_GUARD::QAR(E),XS(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).