MESON Chess Problem Database
Problem Display
PID: 9815 (6Q1/1n3b2/N1p1R2p/1p1kB3/1p5R/1P4pB/1Kn5/8 w - - 0 1)
Blake, Percy Francis
Manchester Weekly Times, 1910
#2
8 + 9
SOLUTION
- SOUND
- Sets
- 1...Bxe6
- 2.Qxe6#
- 1...Be8
- 2.Bg2#
- 2.Rxe8#
- 1...Sa1
- 2.Rd4#
- 1...Se1
- 2.Rd4#
- 1...Sa3
- 2.Rd4#
- 1...Se3
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sa5
- 2.Qd8#
- 1...Sc5
- 2.Sc7#
- 1...Sd8
- 2.Qxd8#
- 1...g2
- 2.Qxg2#
- 1...c5
- 2.Sc7#
- 1...Bxe6
- Tries
- 1.Kxc2?
- threat
- 2.Rd4#
- 1...Bxe6
- 2.Qxe6#
- 1...c5
- 2.Sc7#
- 1...Bg6+!
- threat
- 1.Sxb4+?
- 1...Kc5
- 2.Rxc6#
- 1...Sxb4!
- 1...Kc5
- 1.Bc3?
- 1...Bxe6
- 2.Qxe6#
- 1...Bxg8
- 2.Rh5#
- 1...Bh5
- 2.Rxh5#
- 2.Rg6#
- 1...Bg6
- 2.Rxg6#
- 1...Be8
- 2.Bg2#
- 1...Sa1
- 2.Rd4#
- 1...Se1
- 2.Rd4#
- 1...Sa3
- 2.Rd4#
- 1...Se3
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sa5
- 2.Qd8#
- 1...Sc5
- 2.Sc7#
- 1...Sd6
- 2.Re5#
- 1...Sd8
- 2.Qxd8#
- 1...g2
- 2.Qxg2#
- 1...c5
- 2.Sc7#
- 1...h5
- 2.Qg5#
- 1...bxc3+!
- 1...Bxe6
- 1.Bd4?
- threat
- 2.Sc7#
- 1...Bxe6
- 2.Qxe6#
- 1...Sxd4!
- threat
- 1.Bf6?
- 1...Bxe6
- 2.Qxe6#
- 1...Bxg8
- 2.Rh5#
- 1...Bh5
- 2.Rxh5#
- 1...Be8
- 2.Bg2#
- 1...Sa1
- 2.Rd4#
- 1...Se1
- 2.Rd4#
- 1...Sa3
- 2.Rd4#
- 1...Se3
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sa5
- 2.Qd8#
- 1...Sc5
- 2.Sc7#
- 1...Sd6
- 2.Re5#
- 1...Sd8
- 2.Qxd8#
- 1...g2
- 2.Qxg2#
- 1...c5
- 2.Sc7#
- 1...h5
- 2.Qg5#
- 1...Bg6!
- 1...Bxe6
- 1.Bb8?
- threat
- 2.Re5#
- 1...Bxe6
- 2.Bg2#
- 2.Bxe6#
- 2.Qxe6#
- 1...c5
- 2.Sc7#
- 1...Sd6!
- threat
- 1.Rc4?
- threat
- 2.Sc7#
- 1...Bxe6
- 2.Qxe6#
- 1...Sd4
- 2.Rxd4#
- 1...bxc4!
- threat
- 1.Rd6+?
- 1...Kxe5
- 2.Qxg3#
- 1...Sxd6!
- 1...Kxe5
- 1.Re7?
- threat
- 2.Bg2#
- 2.Qxf7#
- 1...Bxg8
- 2.Bg2#
- 1...Be6
- 2.Qxe6#
- 1...c5
- 2.Bg2#
- 1...Se1
- 2.Rd4#
- 2.Qxf7#
- 1...Se3
- 2.Rd4#
- 2.Qxf7#
- 1...Sd4
- 2.Rxd4#
- 1...Sc5
- 2.Sc7#
- 1...Sd8
- 2.Bg2#
- 2.Qxd8#
- 1...g2
- 2.Bxg2#
- 2.Qxf7#
- 2.Qxg2#
- 1...Sd6!
- threat
- 1.Re8?
- threat
- 2.Bg2#
- 2.Qxf7#
- 1...Bxg8
- 2.Bg2#
- 1...Be6
- 2.Qxe6#
- 1...c5
- 2.Bg2#
- 1...Se1
- 2.Rd4#
- 2.Qxf7#
- 1...Se3
- 2.Rd4#
- 2.Qxf7#
- 1...Sd4
- 2.Rxd4#
- 1...Sc5
- 2.Sc7#
- 1...Sd8
- 2.Bg2#
- 1...g2
- 2.Bxg2#
- 2.Qxf7#
- 2.Qxg2#
- 1...Sd6!
- threat
- 1.Qxf7?
- threat
- 2.Bg2#
- 2.Re7#
- 2.Re8#
- 2.Qf3#
- 1...Se1
- 2.Rd4#
- 2.Re7#
- 2.Re8#
- 1...Se3
- 2.Rd4#
- 2.Re7#
- 2.Re8#
- 2.Qf3#
- 1...Sd4
- 2.Rxd4#
- 1...Sc5
- 2.Sc7#
- 1...Sd8
- 2.Bg2#
- 2.Qf3#
- 2.Qd7#
- 1...g2
- 2.Bxg2#
- 2.Re7#
- 2.Re8#
- 2.Qf3#
- 1...c5
- 2.Sc7#
- 2.Bg2#
- 2.Qf3#
- 2.Qxb7#
- 1...Sd6!
- threat
- 1.Qc8?
- threat
- 2.Bg2#
- 2.Qxc6#
- 1...Bxe6
- 2.Qxe6#
- 1...Bh5
- 2.Qxc6#
- 1...Bg6
- 2.Qxc6#
- 1...Be8
- 2.Bg2#
- 1...Se1
- 2.Rd4#
- 2.Qxc6#
- 1...Se3
- 2.Rd4#
- 2.Qxc6#
- 1...Sd4
- 2.Rxd4#
- 1...Sa5
- 2.Bg2#
- 2.Qd7#
- 2.Qd8#
- 1...Sc5
- 2.Sc7#
- 2.Qxc6#
- 1...Sd8
- 2.Bg2#
- 2.Qd7#
- 2.Qxd8#
- 1...g2
- 2.Bxg2#
- 2.Qxc6#
- 1...c5
- 2.Sc7#
- 2.Bg2#
- 2.Qxb7#
- 2.Qc6#
- 1...Sd6!
- threat
- 1.Qd8+?
- 1...Sd6
- 2.Qxd6#
- 1...Sxd8!
- 1...Sd6
- 1.Qe8?
- threat
- 2.Bg2#
- 2.Qxc6#
- 1...Bxe6
- 2.Qxe6#
- 1...Sd6
- 2.Rxd6#
- 1...Bh5
- 2.Qxc6#
- 1...Bg6
- 2.Qxc6#
- 1...Se1
- 2.Rd4#
- 2.Qxc6#
- 1...Se3
- 2.Rd4#
- 2.Qxc6#
- 1...Sd4
- 2.Rxd4#
- 1...Sa5
- 2.Bg2#
- 2.Rd6#
- 2.Qd7#
- 2.Qd8#
- 1...Sc5
- 2.Sc7#
- 2.Rd6#
- 2.Qxc6#
- 1...Sd8
- 2.Bg2#
- 2.Rd6#
- 2.Qd7#
- 2.Qxd8#
- 1...g2
- 2.Bxg2#
- 2.Qxc6#
- 1...c5
- 2.Sc7#
- 2.Bg2#
- 2.Qc6#
- 1...Bxe8!
- threat
- 1.Qf8?
- threat
- 2.Sc7#
- 1...Sd6
- 2.Qxd6#
- 1...Bxe6!
- threat
- 1.Kxc2?
- Keys
- 1.Bh8!
- 1...Bxe6
- 2.Qxe6#
- 1...Bxg8
- 2.Rh5#
- 1...Bh5
- 2.Rxh5#
- 2.Rg6#
- 1...Bg6
- 2.Rxg6#
- 1...Be8
- 2.Bg2#
- 1...Sa1
- 2.Rd4#
- 1...Se1
- 2.Rd4#
- 1...Sa3
- 2.Rd4#
- 1...Se3
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sa5
- 2.Qd8#
- 1...Sc5
- 2.Sc7#
- 1...Sd6
- 2.Re5#
- 1...Sd8
- 2.Qxd8#
- 1...g2
- 2.Qxg2#
- 1...c5
- 2.Sc7#
- 1...h5
- 2.Qg5#
- 1...Bxe6
- 1.Bh8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- B(i);OGATE,P_SPINB(i),XR(G)::QAB1(H),XB(i)
- S(a);N_GUARD::R1(D)
- S(a);N_GUARD::R1(D),XS(a)
- S(h);N_GUARD::QAR(H)
- S(h);SBLOCK::S(F)
- S(h);N_GUARD::QAR(H),XS(h)
- P(b);OGATE::QAB(H),XP(b)
- P(f);SBLOCK::S(F)
- Tries
- Try
- K(A);P-FLIGHT,XS(a)
- Threat
- R1(D)
- Vars
- B(i);OGATE,P_SPINB(i),XR(G)::QAB1(H),XB(i)
- P(f);SBLOCK::S(F)
- Refutation
- B(i);CHECK
- Try
- S(F);CHECK,XP(c)
- Vars
- K(e);P-FLIGHT::R1(G),XP(f)
- Refutation
- S(a);XS(F)
- Try
- B(E);
- Vars
- B(i);OGATE,P_SPINB(i),XR(G)::QAB1(H),XB(i)
- B(i);N_GUARD,XQ(H)::R(D)
- B(i);OGATEB::QAB(H)+R(G),XB(i)
- B(i);::B(C)
- S(a);N_GUARD::R1(D)
- S(a);N_GUARD::R1(D),XS(a)
- S(h);N_GUARD::QAR(H)
- S(h);SBLOCK::S(F)
- S(h);SBLOCK::R1(G)
- S(h);N_GUARD::QAR(H),XS(h)
- P(b);OGATE::QAB(H),XP(b)
- P(f);SBLOCK::S(F)
- P(g);N_GUARD::QAR(H)
- Refutation
- P(c);CHECK,XB(E)
- Try
- B(E);
- Threat
- S(F)
- Vars
- B(i);OGATE,P_SPINB(i),XR(G)::QAB1(H),XB(i)
- Refutation
- S(a);XB(E)
- Try
- B(E);
- Vars
- B(i);OGATE,P_SPINB(i),XR(G)::QAB1(H),XB(i)
- B(i);N_GUARD,XQ(H)::R(D)
- B(i);N_GUARD::R(D),XB(i)
- B(i);::B(C)
- S(a);N_GUARD::R1(D)
- S(a);N_GUARD::R1(D),XS(a)
- S(h);N_GUARD::QAR(H)
- S(h);SBLOCK::S(F)
- S(h);SBLOCK::R1(G)
- S(h);N_GUARD::QAR(H),XS(h)
- P(b);OGATE::QAB(H),XP(b)
- P(f);SBLOCK::S(F)
- P(g);N_GUARD::QAR(H)
- Refutation
- B(i);
- Try
- B(E);
- Threat
- R1(G)
- Vars
- P(f);SBLOCK::S(F)
- Refutation
- S(h);
- Try
- R(D);
- Threat
- S(F)
- Vars
- B(i);OGATE,P_SPINB(i),XR(G)::QAB1(H),XB(i)
- S(a);N_GUARD::R1(D),XS(a)
- Refutation
- P(d);XR(D)
- Try
- R(G);CHECK,P_PINB(i)
- Vars
- K(e);N_SPINB(i),P-FLIGHT,XB(E)::QAB(H),XP(b)
- Refutation
- S(h);XR(G)
- Try
- R(G);P_PINB(i)
- Threat
- DUALS(2)
- Vars
- B(i);N_SPINB(i),XQ(H)::B(C)
- B(i);OGATE::QAB1(H),XB(i)
- P(f);::B(C)
- S(a);N_GUARD::R1(D),XS(a)
- S(h);SBLOCK::S(F)
- Refutation
- S(h);
- Try
- R(G);P_PINB(i)
- Threat
- DUALS(2)
- Vars
- B(i);N_SPINB(i),XQ(H)::B(C)
- B(i);OGATE::QAB1(H),XB(i)
- P(f);::B(C)
- S(a);N_GUARD::R1(D),XS(a)
- S(h);SBLOCK::S(F)
- S(h);::B(C)
- Refutation
- S(h);
- Try
- Q(H);XB(i)
- Threat
- DUALS(4)
- Vars
- S(a);N_GUARD::R1(D),XS(a)
- S(h);SBLOCK::S(F)
- Refutation
- S(h);
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- B(i);OGATE,XR(G)::QAB1(H),XB(i)
- B(i);::QAB1(H),XP(f)
- B(i);::B(C)
- S(a);N_GUARD::R1(D),XS(a)
- Refutation
- S(h);
- Try
- Q(H);CHECK
- Vars
- S(h);N_GUARD,P_SPINS(h)::QAR1(H),XS(h)
- Refutation
- S(h);XQ(H)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- B(i);OGATE,XR(G)::QAB1(H),XB(i)
- S(h);N_GUARD::R1(G),XS(h)
- B(i);::QAB1(H),XP(f)
- S(a);N_GUARD::R1(D),XS(a)
- Refutation
- B(i);XQ(H)
- Try
- Q(H);
- Threat
- S(F)
- Vars
- S(h);N_GUARD::QAR1(H),XS(h)
- Refutation
- B(i);XR(G)
- Try
- Actual
- B(E);
- Vars
- B(i);OGATE,P_SPINB(i),XR(G)::QAB1(H),XB(i)
- B(i);N_GUARD,XQ(H)::R(D)
- B(i);OGATEB::QAB(H)+R(G),XB(i)
- B(i);::B(C)
- S(a);N_GUARD::R1(D)
- S(a);N_GUARD::R1(D),XS(a)
- S(h);N_GUARD::QAR(H)
- S(h);SBLOCK::S(F)
- S(h);SBLOCK::R1(G)
- S(h);N_GUARD::QAR(H),XS(h)
- P(b);OGATE::QAB(H),XP(b)
- P(f);SBLOCK::S(F)
- P(g);N_GUARD::QAR(H)
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).