MESON Chess Problem Database
Problem Display
PID: 4796 (2B4b/1K3b2/3P1k2/2ppN3/7P/2Q1N1RP/5Pn1/B4R2 w - - 0 1)
Blake, Percy Francis
Manchester Evening News, 1891
#2
12 + 6
SOLUTION
- SOUND
- Sets
- 1...Bh5
- 2.Sxd5#
- 1...Be6
- 2.Rg6#
- 1...Bg6
- 2.Rxg6#
- 1...Be8
- 2.Sxd5#
- 1...Bg8
- 2.Rg6#
- 1...Bg7
- 2.S3g4#
- 1...Sxe3
- 2.fxe3#
- 1...Bh5
- Tries
- 1.Rg5?
- threat
- 2.S3g4#
- 2.S5g4#
- 1...Sxe3
- 2.Sg4#
- 2.fxe3#
- 1...Bg6
- 2.Rxg6#
- 1...Bh5
- 2.Sxd5#
- 1...Be6
- 2.Rg6#
- 1...Be8
- 2.S3g4#
- 2.Sxd5#
- 1...Bg8
- 2.S3g4#
- 2.Rg6#
- 1...Sxh4!
- threat
- 1.Rg8?
- threat
- 2.S3g4#
- 2.S5g4#
- 1...Sxe3
- 2.Sg4#
- 2.fxe3#
- 1...Bh5
- 2.Sxd5#
- 1...Be6
- 2.Rg6#
- 1...Bg6
- 2.S3g4#
- 2.Sxd5#
- 2.Rxg6#
- 1...Be8
- 2.S3g4#
- 2.Sxd5#
- 1...Bg7
- 2.S3g4#
- 1...Bxg8!
- threat
- 1.Qd4?
- 1...Sxe3
- 2.fxe3#
- 1...Sxh4
- 2.Qxh4#
- 1...Bg6
- 2.Rxg6#
- 1...Bh5
- 2.Sxd5#
- 1...Be6
- 2.Rg6#
- 1...Be8
- 2.Sxd5#
- 1...Bg8
- 2.Rg6#
- 1...Bg7
- 2.S3g4#
- 1...Se1
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...c4
- 2.Sd3#
- 2.Sf3#
- 2.S5xc4#
- 2.Sc6#
- 2.Sg6#
- 1...cxd4!
- 1...Sxe3
- 1.Qa5?
- threat
- 2.Qd8#
- 1...Bg6
- 2.Rxg6#
- 1...d4!
- threat
- 1.Qc2?
- threat
- 2.S5g4#
- 2.Qf5#
- 1...Sxe3
- 2.Sg4#
- 2.fxe3#
- 1...Bg6
- 2.Rxg6#
- 2.Qxg6#
- 1...d4
- 2.Qf5#
- 1...Bh5
- 2.Sxd5#
- 2.Qf5#
- 1...Be6
- 2.Rg6#
- 2.Qg6#
- 1...Be8
- 2.Sxd5#
- 2.Qf5#
- 1...Bg8
- 2.Rg6#
- 2.Qf5#
- 2.Qg6#
- 1...Sxh4!
- threat
- 1.Qd3?
- threat
- 2.S5g4#
- 2.Qf5#
- 1...Sxe3
- 2.Sg4#
- 2.fxe3#
- 1...Bg6
- 2.Rxg6#
- 2.Qxg6#
- 1...d4
- 2.Qf5#
- 1...Bh5
- 2.Sxd5#
- 2.Qf5#
- 1...Be6
- 2.Rg6#
- 2.Qg6#
- 1...Be8
- 2.Sxd5#
- 2.Qf5#
- 1...Bg8
- 2.Rg6#
- 2.Qf5#
- 2.Qg6#
- 1...Sxh4!
- threat
- 1.Rg5?
- Keys
- 1.Qc4!
- 1...Sxe3
- 2.fxe3#
- 1...Sxh4
- 2.Qxh4#
- 1...dxc4
- 2.S5xc4#
- 1...Bg6
- 2.Rxg6#
- 1...d4
- 2.Sd7#
- 1...Bh5
- 2.Sxd5#
- 1...Be6
- 2.Rg6#
- 1...Be8
- 2.Sxd5#
- 1...Bg8
- 2.Rg6#
- 1...Bg7
- 2.S3g4#
- 1...Se1
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sxe3
- 1.Qc4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- B(e);N_GUARD::S(E),XP(c)
- B(e);N_GUARD::R1(F)
- B(e);N_GUARD::R1(F),XB(e)
- B(f);SBLOCK::S(E)
- S(a);OGATE,XS(E)::R(B)+P(C),XS(a)
- Tries
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- B(e);N_GUARD::R1(F),XB(e)
- B(e);N_GUARD::S(E),XP(c)
- B(e);N_GUARD::R1(F)
- Refutation
- S(a);XP(H)
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- B(e);N_GUARD::S(E),XP(c)
- B(e);N_GUARD::R1(F)
- B(f);::S(E)
- Refutation
- B(e);XR(F)
- Try
- Q(D);
- Vars
- S(a);OGATE,XS(E)::R(B)+P(C),XS(a)
- S(a);OGATE,XP(H)::QAB(D),XS(a)
- B(e);N_GUARD::R1(F),XB(e)
- B(e);N_GUARD::S(E),XP(c)
- B(e);N_GUARD::R1(F)
- B(f);SBLOCK::S(E)
- S(a);N_GUARD::QAR2(D)
- S(a);N_GUARD::QAR2(D),XS(a)
- Refutation
- P(b);XQ(D)
- Try
- Q(D);
- Threat
- QAB(D)
- Vars
- B(e);N_GUARD::R1(F),XB(e)
- Refutation
- P(c);
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- P(c);::QAR1(D)
- Refutation
- S(a);XP(H)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- P(c);::QAR1(D)
- Refutation
- S(a);XP(H)
- Try
- Actual
- Q(D);
- Vars
- S(a);OGATE,XS(E)::R(B)+P(C),XS(a)
- S(a);OGATE,XP(H)::QAB(D),XS(a)
- P(c);XQ(D)::B(A)+S(I),XP(c)
- B(e);N_GUARD::R1(F),XB(e)
- P(c);::S(I)
- B(e);N_GUARD::S(E),XP(c)
- B(e);N_GUARD::R1(F)
- B(f);SBLOCK::S(E)
- S(a);N_GUARD::QAR2(D)
- S(a);N_GUARD::QAR2(D),XS(a)
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).