MESON Chess Problem Database
Problem Display
PID: 5121 (1n3B2/r4Bp1/1pP1R3/3k1n1N/1P1pp3/3RP1b1/b1Q4p/3N3K w - - 0 1)
Blake, Percy Francis
HM., Hampstead and Highgate Express, 1900
#2
11 + 11
SOLUTION
- SOUND
- Sets
- 1...Ra3
- 2.Re8#
- 1...Ra4
- 2.Re8#
- 1...Ra5
- 2.Re8#
- 1...Ra6
- 2.Re8#
- 1...Rb7
- 2.Qxa2#
- 1...Rc7
- 2.Qxa2#
- 1...Rd7
- 2.Qxa2#
- 1...Re7
- 2.Qxa2#
- 1...Rxf7
- 2.Qxa2#
- 1...Ra8
- 2.Re8#
- 1...Bb1
- 2.Qb3#
- 1...Bb3
- 2.Qxb3#
- 1...Bc4
- 2.Sc3#
- 1...Be1
- 2.Sf4#
- 1...Bf2
- 2.Sf4#
- 1...Bf4
- 2.Sxf4#
- 1...Bh4
- 2.Sf4#
- 1...Be5
- 2.Rd6#
- 1...Bd6
- 2.Re7#
- 1...Bc7
- 2.Re8#
- 1...Sxe3
- 2.Sxe3#
- 1...Sh4
- 2.Rxd4#
- 1...Sd6
- 2.Rxd4#
- 1...Sh6
- 2.Rxd4#
- 1...Se7
- 2.Rxd4#
- 1...Sa6
- 2.Qxa2#
- 1...Sxc6
- 2.Qxc6#
- 1...Sd7
- 2.Re8#
- 1...exd3
- 2.e4#
- 1...b5
- 2.Qc5#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...Ra3
- Tries
- 1.Bxg7?
- threat
- 2.Sf6#
- 1...Rxf7
- 2.Qxa2#
- 1...Bh4
- 2.Sf4#
- 1...Sd7
- 2.Rg6#
- 2.Rh6#
- 1...Be5!
- threat
- 1.Rd2?
- 1...Rxf7
- 2.Qxa2#
- 1...Sxe3
- 2.Sxe3#
- 1...Sxc6
- 2.Qxc6#
- 1...Ra3
- 2.Rxe4#
- 2.Re8#
- 1...Ra4
- 2.Rxe4#
- 2.Re8#
- 1...Ra5
- 2.Rxe4#
- 2.Re8#
- 1...Ra6
- 2.Rxe4#
- 2.Re8#
- 1...Rb7
- 2.Qxa2#
- 1...Rc7
- 2.Qxa2#
- 1...Rd7
- 2.Qxa2#
- 1...Re7
- 2.Qxa2#
- 1...Ra8
- 2.Rxe4#
- 2.Re8#
- 1...Bb1
- 2.Qb3#
- 1...Bb3
- 2.Qxb3#
- 1...Bc4
- 2.Sc3#
- 2.Qxe4#
- 1...Be1
- 2.Sf4#
- 1...Bf2
- 2.Sf4#
- 1...Bf4
- 2.Sxf4#
- 1...Bh4
- 2.Sf4#
- 1...Be5
- 2.Rd6#
- 1...Bd6
- 2.Re7#
- 1...Bc7
- 2.Rxe4#
- 2.Re8#
- 1...Sh4
- 2.Rxd4#
- 1...Sd6
- 2.Rxd4#
- 1...Sh6
- 2.Rxd4#
- 1...Se7
- 2.Rxd4#
- 1...Sa6
- 2.Qxa2#
- 1...Sd7
- 2.Rxe4#
- 2.Re8#
- 1...b5
- 2.Qc5#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...d3!
- 1...Rxf7
- 1.Qc4+?
- 1...Bxc4
- 2.Sc3#
- 1...Kxc4!
- 1...Bxc4
- 1.exd4?
- threat
- 2.Re5#
- 2.Rd6#
- 1...Rxf7
- 2.Qxa2#
- 1...Sxd4
- 2.Se3#
- 1...Re7
- 2.Qxa2#
- 1...Bc4
- 2.Sc3#
- 2.Rd6#
- 1...Be5
- 2.Rxe5#
- 2.Rd6#
- 1...Bd6
- 2.Re5#
- 2.Rxd6#
- 2.Re7#
- 1...Sd6
- 2.Se3#
- 2.Re5#
- 2.Rxd6#
- 1...Se7
- 2.Se3#
- 2.Rf6#
- 2.Rg6#
- 2.Rh6#
- 1...e3
- 2.Re5#
- 1...exd3!
- threat
- 1.b5?
- 1...Rxf7
- 2.Qxa2#
- 1...Sxe3
- 2.Sxe3#
- 1...Sxc6
- 2.Qxc6#
- 1...exd3
- 2.e4#
- 1...Ra3
- 2.Re8#
- 1...Ra4
- 2.Re8#
- 1...Ra5
- 2.Re8#
- 1...Ra6
- 2.Re8#
- 1...Rb7
- 2.Qxa2#
- 1...Rc7
- 2.Qxa2#
- 1...Rd7
- 2.Qxa2#
- 1...Ra8
- 2.Re8#
- 1...Bb1
- 2.Qb3#
- 1...Bb3
- 2.Qxb3#
- 1...Bc4
- 2.Sc3#
- 1...Be1
- 2.Sf4#
- 1...Bf2
- 2.Sf4#
- 1...Bf4
- 2.Sxf4#
- 1...Bh4
- 2.Sf4#
- 1...Be5
- 2.Rd6#
- 1...Bd6
- 2.Re7#
- 1...Bc7
- 2.Re8#
- 1...Sh4
- 2.Rxd4#
- 1...Sd6
- 2.Rxd4#
- 1...Sh6
- 2.Rxd4#
- 1...Se7
- 2.Rxd4#
- 1...Sa6
- 2.Qxa2#
- 1...Sd7
- 2.Re8#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...Re7!
- 1...Rxf7
- 1.c7?
- threat
- 2.Re8#
- 1...Bc4
- 2.Sc3#
- 1...Sd6
- 2.Rxd4#
- 1...Sh6
- 2.Rxd4#
- 1...Se7
- 2.Rxd4#
- 1...Rxc7!
- threat
- 1.Bxg7?
- Keys
- 1.Bg8!
- 1...Sxe3
- 2.Sxe3#
- 1...Sxc6
- 2.Qxc6#
- 1...exd3
- 2.e4#
- 1...Rf7
- 2.Qxa2#
- 1...Ra3
- 2.Re8#
- 1...Ra4
- 2.Re8#
- 1...Ra5
- 2.Re8#
- 1...Ra6
- 2.Re8#
- 1...Rb7
- 2.Qxa2#
- 1...Rc7
- 2.Qxa2#
- 1...Rd7
- 2.Qxa2#
- 1...Re7
- 2.Qxa2#
- 1...Ra8
- 2.Re8#
- 1...Bb1
- 2.Qb3#
- 1...Bb3
- 2.Qxb3#
- 1...Bc4
- 2.Sc3#
- 1...Be1
- 2.Sf4#
- 1...Bf2
- 2.Sf4#
- 1...Bf4
- 2.Sxf4#
- 1...Bh4
- 2.Sf4#
- 1...Be5
- 2.Rd6#
- 1...Bd6
- 2.Re7#
- 1...Bc7
- 2.Re8#
- 1...Sh4
- 2.Rxd4#
- 1...Sd6
- 2.Rxd4#
- 1...Sh6
- 2.Rxd4#
- 1...Se7
- 2.Rxd4#
- 1...Sa6
- 2.Qxa2#
- 1...Sd7
- 2.Re8#
- 1...b5
- 2.Qc5#
- 1...g5
- 2.Sf6#
- 1...g6
- 2.Sf6#
- 1...Sxe3
- 1.Bg8!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(i);N_GUARD::B(J)+R(I)
- R(i);N_GUARD::QAB(C),XB(a)
- R(i);N_GUARD,XB(J)::QAB(C),XB(a)
- B(a);N_GUARD::QAB(C)
- B(a);N_GUARD::QAB(C),XB(a)
- B(a);SBLOCK::S(A)
- B(c);N_GUARD::S(G)
- B(c);N_GUARD::S(G),XB(c)
- B(c);SBLOCK::B(J)+R(I),DCHECK
- B(c);SBLOCK::B(J)+R(I)
- B(c);S_CUTR(i)::B(J)+R(I)
- S(g);XP(E)::S(A),XS(g)
- S(g);N_GUARD::R1(D),XP(d)
- S(k);S_CUTR(i)::QAB(C),XB(a)
- S(k);OGATE,XP(H)::QAB1(C),XS(k)
- S(k);S_CUTR(i)::B(J)+R(I)
- P(e);N_SPINP(d),OGATE,XR(D)::P(E)
- P(h);N_GUARD::QAR1(C)
- P(j);N_GUARD::S(G)
- Tries
- Try
- B(K);XP(j)
- Threat
- S(G)
- Vars
- R(i);N_GUARD,XB(J)::QAB(C),XB(a)
- B(c);N_GUARD::S(G)
- Refutation
- B(c);
- Try
- R(D);
- Vars
- R(i);N_GUARD,XB(J)::QAB(C),XB(a)
- S(g);XP(E)::S(A),XS(g)
- S(k);OGATE,XP(H)::QAB1(C),XS(k)
- R(i);N_GUARD::QAB(C),XB(a)
- B(a);N_GUARD::QAB(C)
- B(a);N_GUARD::QAB(C),XB(a)
- B(c);N_GUARD::S(G)
- B(c);N_GUARD::S(G),XB(c)
- B(c);SBLOCK::B(J)+R(I),DCHECK
- B(c);SBLOCK::B(J)+R(I)
- S(g);N_GUARD::R1(D),XP(d)
- S(k);S_CUTR(i)::QAB(C),XB(a)
- P(h);N_GUARD::QAR1(C)
- P(j);N_GUARD::S(G)
- Refutation
- P(d);
- Try
- Q(C);CHECK
- Vars
- B(a);SBLOCK,XQ(C)::S(A)
- Refutation
- K(f);N_SPINP(d),S_FLIGHT,XQ(C)
- Try
- P(E);XP(d)
- Threat
- DUALS(2)
- Vars
- R(i);N_GUARD,XB(J)::QAB(C),XB(a)
- S(g);N_GUARD,P_SPINS(g),XP(E)::S(A)
- R(i);N_GUARD::QAB(C),XB(a)
- P(e);::B(J)+R(I),DCHECK
- Refutation
- P(e);XR(D)
- Try
- P(F);
- Vars
- R(i);N_GUARD,XB(J)::QAB(C),XB(a)
- S(g);XP(E)::S(A),XS(g)
- S(k);OGATE,XP(H)::QAB1(C),XS(k)
- P(e);N_SPINP(d),OGATE,XR(D)::P(E)
- R(i);N_GUARD::B(J)+R(I)
- R(i);N_GUARD::QAB(C),XB(a)
- B(a);N_GUARD::QAB(C)
- B(a);N_GUARD::QAB(C),XB(a)
- B(a);SBLOCK::S(A)
- B(c);N_GUARD::S(G)
- B(c);N_GUARD::S(G),XB(c)
- B(c);SBLOCK::B(J)+R(I),DCHECK
- B(c);SBLOCK::B(J)+R(I)
- B(c);S_CUTR(i)::B(J)+R(I)
- S(g);N_GUARD::R1(D),XP(d)
- S(k);S_CUTR(i)::QAB(C),XB(a)
- S(k);S_CUTR(i)::B(J)+R(I)
- P(j);N_GUARD::S(G)
- Refutation
- R(i);
- Try
- P(H);
- Threat
- B(J)+R(I)
- Vars
- B(a);SBLOCK::S(A)
- S(g);N_GUARD::R1(D),XP(d)
- Refutation
- R(i);XP(H)
- Try
- Actual
- B(J);
- Vars
- S(g);XP(E)::S(A),XS(g)
- S(k);OGATE,XP(H)::QAB1(C),XS(k)
- P(e);N_SPINP(d),OGATE,XR(D)::P(E)
- R(i);N_GUARD::QAB(C),XB(a)
- R(i);N_GUARD::B(J)+R(I)
- B(a);N_GUARD::QAB(C)
- B(a);N_GUARD::QAB(C),XB(a)
- B(a);SBLOCK::S(A)
- B(c);N_GUARD::S(G)
- B(c);N_GUARD::S(G),XB(c)
- B(c);SBLOCK::B(J)+R(I),DCHECK
- B(c);SBLOCK::B(J)+R(I)
- B(c);S_CUTR(i)::B(J)+R(I)
- S(g);N_GUARD::R1(D),XP(d)
- S(k);S_CUTR(i)::QAB(C),XB(a)
- S(k);S_CUTR(i)::B(J)+R(I)
- P(h);N_GUARD::QAR1(C)
- P(j);N_GUARD::S(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).