MESON Chess Problem Database
Problem Display
PID: 18455 (8/3p4/3Pb3/2KPkpQ1/1p2P2B/1P3P2/8/7n w - - 0 1)
Walton, FW
Time & Tide, 1955
#2
8 + 6
SOLUTION
- SOUND
- Sets
- 1...Bxd5
- 2.Qxf5#
- 1...Bf7
- 2.Qxf5#
- 1...Bg8
- 2.Qxf5#
- 1...Sf2
- 2.Bg3#
- 1...Sg3
- 2.Bxg3#
- 1...Bxd5
- Tries
- 1.Be1?
- 1...Bxd5
- 2.Qxf5#
- 1...Bf7
- 2.Qxf5#
- 1...Bg8
- 2.Qxf5#
- 1...Sg3
- 2.Bxg3#
- 1...Sf2!
- 1...Bxd5
- 1.Bf2?
- threat
- 2.Bd4#
- 1...Bxd5
- 2.Qxf5#
- 1...Sxf2!
- threat
- 1.Qh6?
- threat
- 2.Bf6#
- 1...fxe4
- 2.Qf6#
- 1...Bxd5!
- threat
- 1.Qg3+?
- 1...f4
- 2.Qg7#
- 1...Sxg3!
- 1...f4
- 1.Be1?
- Keys
- 1.Qe3!
- threat
- 2.f4#
- 1...Bxd5
- 2.exd5#
- 1...fxe4
- 2.Qxe4#
- 1...f4
- 2.Qd4#
- threat
- 1.Qe3!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- B(e);N_GUARD,XP(F)::QAR1(G),XP(d)
- B(e);N_GUARD::QAR1(G),XP(d)
- S(a);N_GUARD::B(D)
- S(a);N_GUARD::B(D),XS(a)
- Tries
- Try
- B(D);
- Vars
- B(e);N_GUARD,XP(F)::QAR1(G),XP(d)
- B(e);N_GUARD::QAR1(G),XP(d)
- S(a);N_GUARD::B(D),XS(a)
- Refutation
- S(a);
- Try
- B(D);
- Threat
- B(D)
- Vars
- B(e);N_GUARD,XP(F)::QAR1(G),XP(d)
- Refutation
- S(a);XB(D)
- Try
- Q(G);N_PINP(d)
- Threat
- B(D)
- Vars
- P(d);XP(C)::QAB1(G)
- Refutation
- B(e);XP(F)
- Try
- Q(G);CHECK,N_PINP(d)
- Vars
- P(d);P_SPINP(d),SBLOCK::QAB(G)
- Refutation
- S(a);XQ(G)
- Try
- Actual
- Q(G);N_PINP(d)
- Threat
- P(B)
- Vars
- B(e);OGATE,XP(F)::QAR(G)+P(C),XB(e)
- P(d);OGATE,P_SPINP(d),XP(C)::QAR1(G),XP(d)
- P(d);SBLOCK::QAB1(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).