MESON Chess Problem Database
Problem Display
PID: 9565 (K7/B4pRp/2p5/1r1p4/5k1r/Q4NNP/1n2Rp1b/3n3q w - - 0 1)
Blake, Percy Francis
1st HM., Sydney Morning Herald, 1905
#2
8 + 12
SOLUTION
- SOUND
- Sets
- 1...Qxf3
- 2.Qd6#
- 1...Rg4
- 2.Rxg4#
- 1...Rh5
- 2.Rg4#
- 1...Rh6
- 2.Rg4#
- 1...Rc5
- 2.Bb8#
- 1...Rb8+
- 2.Bxb8#
- 1...Bxg3
- 2.Rxf7#
- 1...Se3
- 2.Qxe3#
- 1...d4
- 2.Re4#
- 1...Qxf3
- Tries
- 1.Sxh4?
- threat
- 2.Sh5#
- 2.Rg4#
- 2.Qd6#
- 1...Rb8+
- 2.Bxb8#
- 1...Bxg3
- 2.Rg4#
- 2.Qd6#
- 2.Qxg3#
- 1...Se3
- 2.Qd6#
- 2.Qxe3#
- 1...Qf3
- 2.Qd6#
- 2.Qxf3#
- 1...Rb4
- 2.Sh5#
- 2.Rg4#
- 1...Rc5
- 2.Sh5#
- 2.Bb8#
- 2.Rg4#
- 1...Sd3
- 2.Sh5#
- 2.Rg4#
- 1...Sc4
- 2.Sh5#
- 2.Rg4#
- 1...d4
- 2.Rg4#
- 1...c5
- 2.Sh5#
- 2.Rg4#
- 1...f5
- 2.Sh5#
- 2.Qd6#
- 1...h5
- 2.Sxh5#
- 2.Qd6#
- 1...Qe4!
- threat
- 1.Sh5+?
- 1...Kf5
- 2.Sxh4#
- 2.Rg5#
- 1...Rxh5!
- 1...Kf5
- 1.Be3+?
- 1...Sxe3
- 2.Qxe3#
- 1...Kxf3!
- 1...Sxe3
- 1.Re5?
- threat
- 2.Se2#
- 2.Rf5#
- 1...Qxf3
- 2.Rf5#
- 1...Bxg3
- 2.Rxf7#
- 1...Rg4
- 2.Se2#
- 2.Sh5#
- 2.Rxg4#
- 1...Rb3
- 2.Rf5#
- 1...Sc3
- 2.Rf5#
- 1...Se3
- 2.Qxe3#
- 1...Sd3
- 2.Rf5#
- 1...f1Q
- 2.Rf5#
- 1...f1B
- 2.Rf5#
- 1...Qe1
- 2.Rf5#
- 1...Qf1
- 2.Rf5#
- 1...Rh5
- 2.Se2#
- 2.Sxh5#
- 2.Rg4#
- 1...d4
- 2.Se2#
- 2.Re4#
- 1...f5
- 2.Se2#
- 2.Rxf5#
- 1...Rb8+!
- threat
- 1.Qd3?
- threat
- 2.Qf5#
- 1...Rb8+
- 2.Bxb8#
- 1...Bxg3
- 2.Rxf7#
- 1...Rg4
- 2.Sh5#
- 2.Rxg4#
- 1...Se3
- 2.Qxe3#
- 1...Rh5
- 2.Sxh5#
- 2.Rg4#
- 1...d4
- 2.Re4#
- 2.Qe4#
- 1...f5
- 2.Qxf5#
- 1...Sxd3!
- threat
- 1.Sxh4?
- Keys
- 1.Re6!
- threat
- 2.Rf6#
- 1...Rb8+
- 2.Bxb8#
- 1...Qxf3
- 2.Qd6#
- 1...Bxg3
- 2.Rxf7#
- 1...fxe6
- 2.Qf8#
- 1...Rg4
- 2.Rxg4#
- 1...Se3
- 2.Qxe3#
- 1...Rh5
- 2.Rg4#
- 1...Rh6
- 2.Rg4#
- 1...d4
- 2.Re4#
- 1...f5
- 2.Se2#
- 1...f6
- 2.Rxf6#
- threat
- 1.Re6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- Q(b);SBLOCK,XS(C)::QAB(B)
- R(g);N_GUARD::R1(G),XR(g)
- R(g);N_GUARD::R1(G)
- R(h);N_GUARD::B(F)
- R(h);CHECK,N_GUARD::B(F),XR(h)
- B(e);SBLOCK,XS(D)::R(G),XP(k)
- S(a);N_GUARD::QAB1(B),XS(a)
- P(i);N_GUARD::R1(A)
- Tries
- Try
- S(C);XR(g)
- Threat
- DUALS(3)
- Vars
- R(h);CHECK,N_GUARD::B(F),XR(h)
- P(i);::R1(G)
- Refutation
- Q(b);
- Try
- S(D);CHECK
- Refutation
- R(g);XS(D)
- Try
- B(F);CHECK
- Vars
- S(a);OGATE,XB(F)::QAB1(B),XS(a)
- Refutation
- K(f);P-FLIGHT,XS(C)
- Try
- R(A);
- Threat
- DUALS(2)
- Vars
- Q(b);XS(C)::R1(A)
- B(e);SBLOCK,XS(D)::R(G),XP(k)
- R(h);::R1(A)
- S(a);::R1(A)
- S(a);N_GUARD::QAB1(B),XS(a)
- S(c);::R1(A)
- P(d);::R1(A)
- Q(b);::R1(A)
- Refutation
- R(h);CHECK
- Try
- Q(B);
- Threat
- QAR1(B)
- Vars
- R(h);CHECK,N_GUARD::B(F),XR(h)
- B(e);SBLOCK,XS(D)::R(G),XP(k)
- S(a);N_GUARD::QAB1(B),XS(a)
- P(k);::QAR1(B),XP(k)
- Refutation
- S(c);XQ(B)
- Try
- Actual
- R(A);
- Threat
- R(A)
- Vars
- R(h);CHECK,N_GUARD::B(F),XR(h)
- Q(b);SBLOCK,XS(C)::QAB(B)
- B(e);SBLOCK,XS(D)::R(G),XP(k)
- P(k);OGATEB,XR(A)::QAR(B)
- R(g);N_GUARD::R1(G),XR(g)
- S(a);N_GUARD::QAB1(B),XS(a)
- R(g);N_GUARD::R1(G)
- P(i);N_GUARD::R1(A)
- P(k);SBLOCK::S(D)
- P(k);::R(A),XP(k)
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).