MESON Chess Problem Database
Problem Display
PID: 5113 (1Nb5/1p3Q2/1R6/K1p1k3/1R2p1n1/2p5/B1N4b/3nB3 w - - 0 1)
Blake, Percy Francis
Brighton Society, 1900
#2
8 + 9
SOLUTION
- SOUND
- Sets
- 1...Bg1
- 2.Bg3#
- 1...Bg3
- 2.Bxg3#
- 1...Bf4
- 2.Qd5#
- 1...Bf5
- 2.Qc7#
- 1...Be6
- 2.Rxe6#
- 1...Bd7
- 2.Sxd7#
- 1...Sb2
- 2.Bxc3#
- 1...Sdf2
- 2.Bxc3#
- 1...Sde3
- 2.Bxc3#
- 1...Sgf2
- 2.Qf6#
- 1...Sge3
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...Sh6
- 2.Qf6#
- 1...e3
- 2.Qd5#
- 1...c4
- 2.R4b5#
- 1...Bg1
- Tries
- 1.Sc6+?
- 1...Kd6
- 2.Qe7#
- 1...bxc6!
- 1...Kd6
- 1.Bd2?
- threat
- 2.Qd5#
- 1...Sf6
- 2.Qxf6#
- 1...Be6
- 2.Rxe6#
- 2.Qxe6#
- 1...Sde3
- 2.Bxc3#
- 1...Sge3
- 2.Qf6#
- 1...c4
- 2.R4b5#
- 1...cxd2!
- threat
- 1.Bb3?
- 1...Bf5
- 2.Qc7#
- 1...Sf6
- 2.Qxf6#
- 1...Sb2
- 2.Bxc3#
- 1...Bg1
- 2.Bg3#
- 1...Bg3
- 2.Bxg3#
- 1...Bf4
- 2.Qd5#
- 1...Be6
- 2.Rxe6#
- 1...Bd7
- 2.Sxd7#
- 1...Sdf2
- 2.Bxc3#
- 1...Sde3
- 2.Bxc3#
- 1...Sgf2
- 2.Qf6#
- 1...Sge3
- 2.Qf6#
- 1...Sh6
- 2.Qf6#
- 1...e3
- 2.Qd5#
- 1...c4
- 2.R4b5#
- 1...cxb4!
- 1...Bf5
- 1.Rb1?
- 1...Bf5
- 2.Qc7#
- 1...Sf6
- 2.Qxf6#
- 1...Sb2
- 2.Bxc3#
- 1...Bg1
- 2.Bg3#
- 1...Bg3
- 2.Bxg3#
- 1...Bf4
- 2.Qd5#
- 1...Be6
- 2.Rxe6#
- 1...Bd7
- 2.Sxd7#
- 1...Sdf2
- 2.Bxc3#
- 1...Sde3
- 2.Bxc3#
- 1...Sgf2
- 2.Qf6#
- 1...Sge3
- 2.Qf6#
- 1...Sh6
- 2.Qf6#
- 1...c4
- 2.R1b5#
- 1...e3!
- 1...Bf5
- 1.Ra4?
- 1...Bf5
- 2.Qc7#
- 1...Sf6
- 2.Qxf6#
- 1...Sb2
- 2.Bxc3#
- 1...Bg1
- 2.Bg3#
- 1...Bg3
- 2.Bxg3#
- 1...Bf4
- 2.Qd5#
- 1...Be6
- 2.Rxe6#
- 1...Bd7
- 2.Sxd7#
- 1...Sdf2
- 2.Bxc3#
- 1...Sde3
- 2.Bxc3#
- 1...Sgf2
- 2.Qf6#
- 1...Sge3
- 2.Qf6#
- 1...Sh6
- 2.Qf6#
- 1...e3
- 2.Qd5#
- 1...c4!
- 1...Bf5
- 1.R4b5?
- threat
- 2.Rxc5#
- 1...Bf5
- 2.Qc7#
- 1...Sf6
- 2.Qxf6#
- 1...Bg1
- 2.Bg3#
- 1...Be6
- 2.Rxe6#
- 1...Sde3
- 2.Bxc3#
- 1...Sge3
- 2.Qf6#
- 1...e3!
- threat
- 1.Sc6+?
- Keys
- 1.Qf8!
- 1...cxb4
- 2.Rb5#
- 1...Bf5
- 2.Qd6#
- 1...Sf6
- 2.Qxf6#
- 1...c4
- 2.R4b5#
- 1...Bg1
- 2.Bg3#
- 1...Bg3
- 2.Bxg3#
- 1...Bf4
- 2.Qxc5#
- 1...Be6
- 2.Rxe6#
- 1...Bd7
- 2.Sxd7#
- 1...Sb2
- 2.Bxc3#
- 1...Sdf2
- 2.Bxc3#
- 1...Sde3
- 2.Bxc3#
- 1...Sgf2
- 2.Qf6#
- 1...Sge3
- 2.Qf6#
- 1...Sh6
- 2.Qf6#
- 1...e3
- 2.Qxc5#
- 1...cxb4
- 1.Qf8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 3
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(b);N_GUARD::B(A)
- B(b);N_GUARD::B(A),XB(b)
- B(b);SBLOCK::QAR1(G)
- B(i);SBLOCK::QAB(G)
- B(i);N_GUARD::R1(F),XB(i)
- B(i);N_GUARD::S(H),XB(i)
- S(a);N_GUARD::B(A),XP(c)
- S(e);N_GUARD::QAB1(G)
- S(e);N_GUARD::QAB1(G),XS(e)
- P(d);::QAR1(G)
- P(f);OGATEB::R(D)
- Tries
- Try
- S(H);CHECK
- Vars
- K(g);S_FLIGHT::QAB1(G)
- Refutation
- P(h);XS(H)
- Try
- B(A);
- Threat
- QAR1(G)
- Vars
- S(e);N_GUARD::QAB1(G),XS(e)
- S(a);N_GUARD::B(A),XP(c)
- S(e);N_GUARD::QAB1(G)
- P(f);OGATEB::R(D)
- Refutation
- P(c);XB(A)
- Try
- B(B);
- Vars
- B(i);SBLOCK::QAB(G)
- S(e);N_GUARD::QAB1(G),XS(e)
- S(a);N_GUARD::B(A),XP(c)
- B(b);N_GUARD::B(A)
- B(b);N_GUARD::B(A),XB(b)
- B(b);SBLOCK::QAR1(G)
- B(i);N_GUARD::R1(F),XB(i)
- B(i);N_GUARD::S(H),XB(i)
- S(e);N_GUARD::QAB1(G)
- P(d);::QAR1(G)
- P(f);OGATEB::R(D)
- Refutation
- P(f);XR(D)
- Try
- R(D);
- Vars
- B(i);SBLOCK::QAB(G)
- S(e);N_GUARD::QAB1(G),XS(e)
- S(a);N_GUARD::B(A),XP(c)
- B(b);N_GUARD::B(A)
- B(b);N_GUARD::B(A),XB(b)
- B(b);SBLOCK::QAR1(G)
- B(i);N_GUARD::R1(F),XB(i)
- B(i);N_GUARD::S(H),XB(i)
- S(e);N_GUARD::QAB1(G)
- P(f);OGATEB::R(D)
- Refutation
- P(d);
- Try
- R(D);
- Vars
- B(i);SBLOCK::QAB(G)
- S(e);N_GUARD::QAB1(G),XS(e)
- S(a);N_GUARD::B(A),XP(c)
- B(b);N_GUARD::B(A)
- B(b);N_GUARD::B(A),XB(b)
- B(b);SBLOCK::QAR1(G)
- B(i);N_GUARD::R1(F),XB(i)
- B(i);N_GUARD::S(H),XB(i)
- S(e);N_GUARD::QAB1(G)
- P(d);::QAR1(G)
- Refutation
- P(f);
- Try
- R(D);P_PINP(f)
- Threat
- R(D),XP(f)
- Vars
- B(i);SBLOCK::QAB(G)
- S(e);N_GUARD::QAB1(G),XS(e)
- B(b);N_GUARD::B(A)
- B(i);N_GUARD::R1(F),XB(i)
- S(a);N_GUARD::B(A),XP(c)
- S(e);N_GUARD::QAB1(G)
- Refutation
- P(d);
- Try
- Actual
- Q(G);
- Vars
- P(f);OGATEB,XR(D)::R(F)
- B(i);SBLOCK::QAB1(G)
- S(e);N_GUARD::QAB1(G),XS(e)
- P(f);OGATEB::R(D)
- B(b);N_GUARD::B(A)
- B(b);N_GUARD::B(A),XB(b)
- B(b);SBLOCK::QAR2(G),XP(f)
- B(i);N_GUARD::R1(F),XB(i)
- B(i);N_GUARD::S(H),XB(i)
- S(a);N_GUARD::B(A),XP(c)
- S(e);N_GUARD::QAB1(G)
- P(d);::QAR2(G),XP(f)
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).