MESON Chess Problem Database
Problem Display
PID: 9558 (2n5/nQ2p1B1/1br5/7N/4kpP1/7R/K4P2/3R3N w - - 0 1)
Blake, Percy Francis
Revue d'Echecs, 1905
#2
9 + 7
SOLUTION
- SOUND
- Sets
- 1...Bxf2
- 2.Sxf2#
- 1...Be3
- 2.f3#
- 1...Bd4
- 2.Rxd4#
- 1...Ba5
- 2.Rd4#
- 1...Bc5
- 2.Qb1#
- 1...Bc7
- 2.Rd4#
- 1...Bd8
- 2.Rd4#
- 1...Sb5
- 2.Qxc6#
- 1...Sd6
- 2.Qxe7#
- 1...f3
- 2.S1g3#
- 1...e5
- 2.Sf6#
- 1...Bxf2
- Tries
- 1.Ka1?
- 1...Bd4+
- 2.Rxd4#
- 1...Bxf2
- 2.Sxf2#
- 1...Be3
- 2.f3#
- 1...Ba5
- 2.Rd4#
- 1...Bc5
- 2.Qb1#
- 1...Bc7
- 2.Rd4#
- 1...Bd8
- 2.Rd4#
- 1...Sb5
- 2.Qxc6#
- 1...Sd6
- 2.Qxe7#
- 1...f3
- 2.S1g3#
- 1...e5
- 2.Sf6#
- 1...e6!
- 1...Bd4+
- 1.Bc3?
- 1...Bxf2
- 2.Sxf2#
- 2.Qb1#
- 1...e6
- 2.Sf6#
- 2.Qh7#
- 1...Be3
- 2.Qb1#
- 2.f3#
- 1...Ba5
- 2.Qb1#
- 1...Bc5
- 2.Qb1#
- 1...Bc7
- 2.Qb1#
- 1...Bd8
- 2.Qb1#
- 1...Sb5
- 2.Qxc6#
- 1...Sd6
- 2.Qxe7#
- 1...f3
- 2.S1g3#
- 1...e5
- 2.Sf6#
- 1...Bd4!
- 1...Bxf2
- 1.Bf6?
- 1...Bxf2
- 2.Sxf2#
- 1...Bd4
- 2.Rxd4#
- 1...e6
- 2.Qh7#
- 1...Be3
- 2.f3#
- 1...Ba5
- 2.Rd4#
- 1...Bc5
- 2.Qb1#
- 1...Bc7
- 2.Rd4#
- 1...Bd8
- 2.Rd4#
- 1...Sb5
- 2.Qxc6#
- 1...Sd6
- 2.Qxe7#
- 1...f3
- 2.S1g3#
- 1...e5
- 2.Qh7#
- 1...exf6!
- 1...Bxf2
- 1.Rd2?
- 1...Bxf2
- 2.Sxf2#
- 1...Bd4
- 2.Rxd4#
- 1...Be3
- 2.f3#
- 1...Ba5
- 2.Rd4#
- 1...Bc5
- 2.Qb1#
- 1...Bc7
- 2.Rd4#
- 1...Bd8
- 2.Rd4#
- 1...Sb5
- 2.Qxc6#
- 1...Sd6
- 2.Qxe7#
- 1...f3
- 2.S1g3#
- 1...e5
- 2.Sf6#
- 1...e6!
- 1...Bxf2
- 1.Ra3?
- threat
- 2.f3#
- 1...Bxf2
- 2.Sxf2#
- 1...Bd4
- 2.Rxd4#
- 1...f3
- 2.S1g3#
- 1...Be3!
- threat
- 1.Rb3?
- threat
- 2.f3#
- 1...Bxf2
- 2.Sxf2#
- 1...Bd4
- 2.Rxd4#
- 1...f3
- 2.S1g3#
- 1...Be3!
- threat
- 1.Rc3?
- threat
- 2.f3#
- 1...Bxf2
- 2.Sxf2#
- 2.Qb1#
- 1...Bd4
- 2.Rxd4#
- 1...f3
- 2.S1g3#
- 1...Be3!
- threat
- 1.Qxb6?
- threat
- 2.Rd4#
- 2.Qd4#
- 2.f3#
- 1...Rxb6
- 2.Rd4#
- 1...Sxb6
- 2.Rd4#
- 1...Rf6
- 2.Qd4#
- 1...Rc3
- 2.Rd4#
- 2.Qd4#
- 2.Qe6#
- 2.Qg6#
- 1...Rc4
- 2.Qe6#
- 2.Qg6#
- 2.f3#
- 1...Rc5
- 2.Rd4#
- 1...Rd6
- 2.f3#
- 1...Sb5
- 2.Qxc6#
- 2.f3#
- 1...f3
- 2.S1g3#
- 2.Rd4#
- 2.Qe3#
- 2.Qd4#
- 1...e5
- 2.f3#
- 1...Rc2+!
- threat
- 1.Qd7?
- threat
- 2.Qf5#
- 2.Qd3#
- 2.Qd5#
- 1...Rf6
- 2.Qd5#
- 1...e6
- 2.Qd3#
- 1...Rc3
- 2.Qf5#
- 2.Qe6#
- 2.Qd5#
- 1...Rc5
- 2.Re1#
- 2.Rd4#
- 2.Qd3#
- 2.Qd4#
- 1...Rd6
- 2.Qf5#
- 1...Re6
- 2.Qxe6#
- 2.Qd3#
- 2.Qd5#
- 1...Bd4
- 2.Rxd4#
- 2.Qf5#
- 2.Qxd4#
- 1...Sd6
- 2.Qe6#
- 2.Qxe7#
- 1...Rc2+!
- threat
- 1.Qxe7+?
- 1...Re6
- 2.Qxe6#
- 1...Sxe7!
- 1...Re6
- 1.Ka1?
- Keys
- 1.Bh8!
- 1...Bxf2
- 2.Sxf2#
- 1...Bd4
- 2.Rxd4#
- 1...e6
- 2.Qh7#
- 1...Be3
- 2.f3#
- 1...Ba5
- 2.Rd4#
- 1...Bc5
- 2.Qb1#
- 1...Bc7
- 2.Rd4#
- 1...Bd8
- 2.Rd4#
- 1...Sb5
- 2.Qxc6#
- 1...Sd6
- 2.Qxe7#
- 1...f3
- 2.S1g3#
- 1...e5
- 2.Sf6#
- 1...Bxf2
- 1.Bh8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(c);XP(D)::S(B),XB(c)
- B(c);SBLOCK::P(D)
- B(c);N_GUARD::R1(A),XB(c)
- B(c);N_GUARD::R1(A)
- B(c);OGATE::QAB(H)
- S(e);N_GUARD::QAB(H),XR(d)
- S(g);N_GUARD::QAR(H),XP(f)
- P(b);N_GUARD,SBLOCK::S(B)
- P(f);N_GUARD,SBLOCK::S(G)
- Tries
- Try
- K(C);P-FLIGHT
- Vars
- B(c);CHECK,N_GUARD::R1(A),XB(c)
- B(c);XP(D)::S(B),XB(c)
- B(c);SBLOCK::P(D)
- B(c);N_GUARD::R1(A)
- B(c);OGATE::QAB(H)
- S(e);N_GUARD::QAB(H),XR(d)
- S(g);N_GUARD::QAR(H),XP(f)
- P(b);N_GUARD,SBLOCK::S(B)
- P(f);N_GUARD,SBLOCK::S(G)
- Refutation
- P(f);
- Try
- B(I);
- Vars
- B(c);OGATE::QAB(H)
- S(e);N_GUARD::QAB(H),XR(d)
- S(g);N_GUARD::QAR(H),XP(f)
- P(b);N_GUARD,SBLOCK::S(B)
- P(f);N_GUARD::S(G)
- Refutation
- B(c);
- Try
- B(I);
- Vars
- B(c);XP(D)::S(B),XB(c)
- B(c);N_GUARD::R1(A),XB(c)
- P(f);OGATE::QAB(H)
- B(c);SBLOCK::P(D)
- B(c);N_GUARD::R1(A)
- B(c);OGATE::QAB(H)
- S(e);N_GUARD::QAB(H),XR(d)
- S(g);N_GUARD::QAR(H),XP(f)
- P(b);N_GUARD,SBLOCK::S(B)
- Refutation
- P(f);XB(I)
- Try
- R(A);
- Vars
- B(c);XP(D)::S(B),XB(c)
- B(c);N_GUARD::R1(A),XB(c)
- B(c);SBLOCK::P(D)
- B(c);N_GUARD::R1(A)
- B(c);OGATE::QAB(H)
- S(e);N_GUARD::QAB(H),XR(d)
- S(g);N_GUARD::QAR(H),XP(f)
- P(b);N_GUARD,SBLOCK::S(B)
- P(f);N_GUARD,SBLOCK::S(G)
- Refutation
- P(f);
- Try
- R(E);
- Threat
- P(D)
- Vars
- B(c);XP(D)::S(B),XB(c)
- B(c);N_GUARD::R1(A),XB(c)
- P(b);N_GUARD::S(B)
- Refutation
- B(c);
- Try
- R(E);
- Threat
- P(D)
- Vars
- B(c);XP(D)::S(B),XB(c)
- B(c);N_GUARD::R1(A),XB(c)
- P(b);N_GUARD::S(B)
- Refutation
- B(c);
- Try
- R(E);
- Threat
- P(D)
- Vars
- B(c);N_GUARD::R1(A),XB(c)
- P(b);N_GUARD::S(B)
- Refutation
- B(c);
- Try
- Q(H);N_PINR(d),XB(c)
- Threat
- DUALS(3)
- Vars
- R(d);XQ(H)::R1(A)
- S(g);XQ(H)::R1(A)
- R(d);::QAR1(H)
- R(d);::R1(A)
- R(d);::P(D)
- P(f);::P(D)
- Refutation
- R(d);CHECK
- Try
- Q(H);N_PINR(d)
- Threat
- DUALS(3)
- Vars
- R(d);::QAB1(H)
- P(f);::QAB1(H)
- Refutation
- R(d);CHECK
- Try
- Q(H);CHECK,N_PINR(d),XP(f)
- Vars
- R(d);N_GUARD,P_SPINR(d)::QAR2(H),XR(d)
- Refutation
- S(g);XQ(H)
- Try
- Actual
- B(I);
- Vars
- B(c);XP(D)::S(B),XB(c)
- B(c);N_GUARD::R1(A),XB(c)
- P(f);OGATE::QAB(H)
- B(c);SBLOCK::P(D)
- B(c);N_GUARD::R1(A)
- B(c);OGATE::QAB(H)
- S(e);N_GUARD::QAB(H),XR(d)
- S(g);N_GUARD::QAR(H),XP(f)
- P(b);N_GUARD,SBLOCK::S(B)
- P(f);N_GUARD,SBLOCK::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).