MESON Chess Problem Database
Problem Display
PID: 145026 (1R4Q1/p1p1p2B/5b2/1P3P2/p1p5/R3NK2/3PN1p1/Bk6 w - - 0 1)
White, Alain Campbell
Les Tours de Force sur l'Echiquier, 1906
#2
11 + 8
SOLUTION
- SOUND
- Sets
- 1...Bb2
- 2.f6#
- 1...Bc3
- 2.f6#
- 1...Bd4
- 2.f6#
- 1...Bh4
- 2.f6#
- 1...Be5
- 2.f6#
- 1...Bg5
- 2.f6#
- 1...Bg7
- 2.f6#
- 1...Bh8
- 2.f6#
- 1...g1Q
- 2.Qxg1#
- 1...g1S+
- 2.Qxg1#
- 1...g1B
- 2.Qxg1#
- 1...g1R
- 2.Qxg1#
- 1...c3
- 2.Qa2#
- 1...e5
- 2.fxe5 ep#
- 1...e6
- 2.fxe6#
- 1...Bb2
- Tries
- 1.Bc3?
- threat
- 2.Ra1#
- 1...g1S+
- 2.Qxg1#
- 1...Bxc3!
- threat
- 1.Bd4?
- threat
- 2.Ra1#
- 1...g1S+
- 2.Qxg1#
- 1...c3
- 2.Qa2#
- 1...Bxd4!
- threat
- 1.Be5?
- threat
- 2.Ra1#
- 1...g1S+
- 2.Qxg1#
- 1...c3
- 2.Qa2#
- 1...Bxe5!
- threat
- 1.Bxf6?
- threat
- 2.Ra1#
- 1...g1S+
- 2.Qxg1#
- 1...c3
- 2.Qa2#
- 1...e5
- 2.fxe5 ep#
- 1...exf6!
- threat
- 1.Qxc4?
- threat
- 2.Qa2#
- 2.Qd3#
- 2.Qc1#
- 2.Qc2#
- 2.Qe4#
- 1...Bxa1
- 2.Qa2#
- 2.Qc1#
- 2.Qc2#
- 1...g1Q
- 2.Qa2#
- 2.Qd3#
- 2.Qc2#
- 2.Qe4#
- 1...g1R
- 2.Qa2#
- 2.Qd3#
- 2.Qc2#
- 2.Qe4#
- 1...Bb2
- 2.Qa2#
- 2.Qd3#
- 2.Qc2#
- 2.Qe4#
- 2.f6#
- 1...Bc3
- 2.Qa2#
- 2.Qd3#
- 2.Qe4#
- 2.f6#
- 1...Bd4
- 2.Qa2#
- 2.Qd3#
- 2.Qc1#
- 2.Qc2#
- 2.f6#
- 1...g1S+!
- threat
- 1.Qxg2?
- threat
- 2.Qf1#
- 2.Qh1#
- 2.Qg1#
- 1...Bb2
- 2.f6#
- 1...Bh4
- 2.f6#
- 1...Bxa1!
- threat
- 1.Qg3?
- threat
- 2.Qe1#
- 1...g1S+
- 2.Qxg1#
- 1...g1Q
- 2.Qxg1#
- 1...g1R
- 2.Qxg1#
- 1...Bb2
- 2.f6#
- 1...Bh4
- 2.f6#
- 1...Bxa1!
- threat
- 1.Qg4?
- threat
- 2.Qe4#
- 1...g1S+
- 2.Qxg1#
- 1...c3
- 2.Qb4#
- 1...Bxa1!
- threat
- 1.Bc3?
- Keys
- 1.d4!
- 1...g1S+
- 2.Qxg1#
- 1...Bxd4
- 2.f6#
- 1...cxd4 ep
- 2.Qa2#
- 1...g1Q
- 2.Qxg1#
- 1...g1B
- 2.Qxg1#
- 1...g1R
- 2.Qxg1#
- 1...a5
- 2.bxa5 ep#
- 1...Bh4
- 2.f6#
- 1...Be5
- 2.f6#
- 1...Bg5
- 2.f6#
- 1...Bg7
- 2.f6#
- 1...Bh8
- 2.f6#
- 1...c3
- 2.Qa2#
- 1...a6
- 2.bxa6#
- 1...c5
- 2.bxc5 ep#
- 1...c6
- 2.bxc6#
- 1...e5
- 2.fxe5 ep#
- 1...e6
- 2.fxe6#
- 1...g1S+
- 1.d4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 2
- Sets
- B(e);OGATE::B(I)+P(H)
- P(b);OGATE::QAR(K),XQ(b)
- P(b);CHECK,OGATE::QAR(K),XS(b)
- P(b);OGATE::QAR(K),XB(b)
- P(b);OGATE::QAR(K),XR(b)
- P(d);OGATE::QAB1(K)
- P(h);OGATE::B(I)+P(H),XP(h),EP
- P(h);OGATE::B(I)+P(H),XP(h)
- Tries
- Try
- B(A);
- Threat
- R1(D)
- Vars
- P(b);CHECK,OGATE::QAR(K),XS(b)
- Refutation
- B(e);XB(A)
- Try
- B(A);
- Threat
- R1(D)
- Vars
- P(b);CHECK,OGATE::QAR(K),XS(b)
- P(d);OGATE::QAB1(K)
- Refutation
- B(e);XB(A)
- Try
- B(A);
- Threat
- R1(D)
- Vars
- P(b);CHECK,OGATE::QAR(K),XS(b)
- P(d);OGATE::QAB1(K)
- Refutation
- B(e);XB(A)
- Try
- B(A);XB(e)
- Threat
- R1(D)
- Vars
- P(b);CHECK,OGATE::QAR(K),XS(b)
- P(d);OGATE::QAB1(K)
- P(h);OGATE::B(I)+P(H),XP(h),EP
- Refutation
- P(h);XB(A)
- Try
- Q(K);XP(d)
- Threat
- DUALS(5)
- Refutation
- P(b);CHECK
- Try
- Q(K);XP(b)
- Threat
- DUALS(3)
- Vars
- B(e);OGATE::B(I)+P(H)
- Refutation
- B(e);XB(A)
- Try
- Q(K);
- Threat
- QAR(K)
- Vars
- P(b);CHECK,OGATE::QAR(K),XS(b)
- P(b);OGATE::QAR(K),XQ(b)
- P(b);OGATE::QAR(K),XR(b)
- B(e);OGATE::B(I)+P(H)
- Refutation
- B(e);XB(A)
- Try
- Q(K);
- Threat
- QAB(K)
- Vars
- P(b);CHECK,OGATE::QAR(K),XS(b)
- P(d);OGATE::QAR(K)
- Refutation
- B(e);XB(A)
- Try
- Actual
- P(B);
- Vars
- P(b);CHECK,OGATE::QAR(K),XS(b)
- B(e);OGATE,XP(B)::B(I)+P(H)
- P(d);EP,OGATE,XP(B)::QAB1(K)
- P(b);OGATE::QAR(K),XQ(b)
- P(b);OGATE::QAR(K),XB(b)
- P(b);OGATE::QAR(K),XR(b)
- P(f);OGATE::R(J)+P(G),XP(f),EP
- B(e);OGATE::B(I)+P(H)
- P(d);OGATE::QAB1(K)
- P(f);OGATE::R(J)+P(G),XP(f)
- P(g);OGATE::R(J)+P(G),XP(g),EP
- P(g);OGATE::R(J)+P(G),XP(g)
- P(h);OGATE::B(I)+P(H),XP(h),EP
- P(h);OGATE::B(I)+P(H),XP(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).