MESON Chess Problem Database
Problem Display
PID: 4983 (K1RNrb2/8/8/8/1p1kP3/nP5R/1p5Q/1B1nB3 w - - 0 1)
Blake, Percy Francis
Brighton Society, 1896
#2
9 + 7
SOLUTION
- SOUND
- Sets
- 1...Rxe4
- 2.Rd3#
- 1...Re5
- 2.Qd2#
- 1...Re6
- 2.Sxe6#
- 1...Re7
- 2.Qd6#
- 1...Bc5
- 2.Sc6#
- 1...Bd6
- 2.Qxd6#
- 1...Bh6
- 2.Qd6#
- 1...Be7
- 2.Se6#
- 1...Bg7
- 2.Qd6#
- 1...Sf2
- 2.Bxf2#
- 1...Sc3
- 2.Bf2#
- 1...Se3
- 2.Qxb2#
- 1...Sxb1
- 2.Rc4#
- 1...Sc2
- 2.Rc4#
- 1...Sc4
- 2.Rxc4#
- 1...Sb5
- 2.Rc4#
- 1...Rxe4
- Tries
- 1.Kb8?
- 1...Bd6+
- 2.Qxd6#
- 1...Rxe4
- 2.Rd3#
- 1...Sxb1
- 2.Rc4#
- 1...Sc2
- 2.Rc4#
- 1...Re5
- 2.Qd2#
- 1...Re6
- 2.Sxe6#
- 1...Re7
- 2.Qd6#
- 1...Bc5
- 2.Sc6#
- 1...Bh6
- 2.Qd6#
- 1...Be7
- 2.Se6#
- 1...Bg7
- 2.Qd6#
- 1...Sf2
- 2.Bxf2#
- 1...Sc3
- 2.Bf2#
- 1...Se3
- 2.Qxb2#
- 1...Sc4
- 2.Rxc4#
- 1...Sb5
- 2.Rc4#
- 1...Rxd8!
- 1...Bd6+
- 1.Bf2+?
- 1...Se3
- 2.Bxe3#
- 1...Sxf2!
- 1...Se3
- 1.Rf3?
- 1...Rxe4
- 2.Rd3#
- 1...Sxb1
- 2.Rc4#
- 1...Sc2
- 2.Rc4#
- 1...Re5
- 2.Qd2#
- 1...Re6
- 2.Sxe6#
- 1...Re7
- 2.Qd6#
- 1...Bc5
- 2.Sc6#
- 1...Bd6
- 2.Qxd6#
- 1...Bh6
- 2.Qd6#
- 1...Be7
- 2.Se6#
- 1...Bg7
- 2.Qd6#
- 1...Sf2
- 2.Bxf2#
- 1...Sc3
- 2.Bf2#
- 1...Se3
- 2.Qxb2#
- 1...Sc4
- 2.Rxc4#
- 1...Sb5
- 2.Rc4#
- 1...Rxd8!
- 1...Rxe4
- 1.Qf4?
- threat
- 2.Rd3#
- 1...Sxb1
- 2.Rc4#
- 1...Sf2
- 2.Bxf2#
- 1...Sc2
- 2.Rc4#
- 1...Se3!
- threat
- 1.Kb8?
- Keys
- 1.Bh4!
- 1...Rxe4
- 2.Rd3#
- 1...Rxd8
- 2.Bf6#
- 1...Sxb1
- 2.Rc4#
- 1...Sc2
- 2.Rc4#
- 1...Re5
- 2.Qd2#
- 1...Re6
- 2.Sxe6#
- 1...Re7
- 2.Qd6#
- 1...Bc5
- 2.Sc6#
- 1...Bd6
- 2.Qxd6#
- 1...Bh6
- 2.Qd6#
- 1...Be7
- 2.Se6#
- 1...Bg7
- 2.Qd6#
- 1...Sf2
- 2.Bxf2#
- 1...Sc3
- 2.Bf2#
- 1...Se3
- 2.Qxb2#
- 1...Sc4
- 2.Rxc4#
- 1...Sb5
- 2.Rc4#
- 1...Rxe4
- 1.Bh4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(f);SBLOCK,XP(F)::R1(E)
- R(f);SBLOCK::QAR2(C)
- R(f);N_GUARD::S(I),XR(f)
- R(f);S_CUTB(g)::QAR2(C)
- B(g);SBLOCK::S(I)
- B(g);N_GUARD::QAR2(C),XB(g)
- B(g);N_GUARD::QAR2(C)
- B(g);S_CUTR(f)::S(I)
- S(a);N_GUARD::B(B),XS(a)
- S(a);N_GUARD::B(B)
- S(a);N_GUARD::QAB(C),XP(b)
- S(c);N_GUARD,XB(A)::R1(H)
- S(c);N_GUARD::R1(H)
- S(c);N_GUARD::R1(H),XS(c)
- Tries
- Try
- K(G);P-FLIGHT
- Vars
- B(g);CHECK,N_GUARD::QAR2(C),XB(g)
- R(f);SBLOCK,XP(F)::R1(E)
- S(c);N_GUARD,XB(A)::R1(H)
- S(c);N_GUARD::R1(H)
- R(f);SBLOCK::QAR2(C)
- R(f);N_GUARD::S(I),XR(f)
- R(f);S_CUTB(g)::QAR2(C)
- B(g);SBLOCK::S(I)
- B(g);N_GUARD::QAR2(C)
- B(g);S_CUTR(f)::S(I)
- S(a);N_GUARD::B(B),XS(a)
- S(a);N_GUARD::B(B)
- S(a);N_GUARD::QAB(C),XP(b)
- S(c);N_GUARD::R1(H),XS(c)
- Refutation
- R(f);P_PINR(H),XS(I)
- Try
- B(B);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::B(B),XS(a)
- Refutation
- S(a);XB(B)
- Try
- R(E);
- Vars
- R(f);SBLOCK,XP(F)::R1(E)
- S(c);N_GUARD,XB(A)::R1(H)
- S(c);N_GUARD::R1(H)
- R(f);SBLOCK::QAR2(C)
- R(f);N_GUARD::S(I),XR(f)
- R(f);S_CUTB(g)::QAR2(C)
- B(g);SBLOCK::S(I)
- B(g);N_GUARD::QAR2(C),XB(g)
- B(g);N_GUARD::QAR2(C)
- B(g);S_CUTR(f)::S(I)
- S(a);N_GUARD::B(B),XS(a)
- S(a);N_GUARD::B(B)
- S(a);N_GUARD::QAB(C),XP(b)
- S(c);N_GUARD::R1(H),XS(c)
- Refutation
- R(f);P_PINR(H),XS(I)
- Try
- Q(C);
- Threat
- R1(E)
- Vars
- S(c);N_GUARD,XB(A)::R1(H)
- S(a);N_GUARD::B(B),XS(a)
- S(c);N_GUARD::R1(H)
- Refutation
- S(a);
- Try
- Actual
- B(B);
- Vars
- R(f);SBLOCK,XP(F)::R1(E)
- R(f);N_GUARD,P_PINR(H),XS(I)::B(B)
- S(c);N_GUARD,XB(A)::R1(H)
- S(c);N_GUARD::R1(H)
- R(f);SBLOCK::QAR2(C)
- R(f);N_GUARD::S(I),XR(f)
- R(f);S_CUTB(g)::QAR2(C)
- B(g);SBLOCK::S(I)
- B(g);N_GUARD::QAR2(C),XB(g)
- B(g);N_GUARD::QAR2(C)
- B(g);S_CUTR(f)::S(I)
- S(a);N_GUARD::B(B),XS(a)
- S(a);N_GUARD::B(B)
- S(a);N_GUARD::QAB(C),XP(b)
- S(c);N_GUARD::R1(H),XS(c)
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).