MESON Chess Problem Database
Problem Display
PID: 176619 (8/8/1Kpp1B2/3N4/1Nk1B3/3b4/PRqpr3/5Q2 w - - 0 1)
Touw Hian Bwee
5th Comm., Schach-Echo, 1960
#2
8 + 7
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Bxd3#
- 1...Qb3
- 2.axb3#
- 1...Qa4
- 2.Bxd3#
- 1...Qc1
- 2.Bxd3#
- 1...Qxb2
- 2.Bxd3#
- 1...Re1
- 2.Rxc2#
- 1...Rf2
- 2.Se3#
- 2.Rxc2#
- 1...Rg2
- 2.Se3#
- 2.Rxc2#
- 1...Rh2
- 2.Se3#
- 2.Rxc2#
- 1...Re3
- 2.Sxe3#
- 2.Rxc2#
- 1...Rxe4
- 2.Rxc2#
- 1...Bxe4
- 2.Se3#
- 1...cxd5
- 2.Bxd5#
- 1...Qd1
- Tries
- 1.Qxe2?
- threat
- 2.Se3#
- 2.Rxc2#
- 1...Qxb2
- 2.Bxd3#
- 2.Qxd3#
- 1...cxd5
- 2.Bxd5#
- 1...d1Q
- 2.Se3#
- 1...d1B
- 2.Se3#
- 1...Qb1
- 2.Se3#
- 1...Qd1
- 2.Se3#
- 2.Bxd3#
- 2.Qxd3#
- 1...Qb3
- 2.axb3#
- 1...Qa4
- 2.Se3#
- 2.Bxd3#
- 2.Qxd3#
- 1...Qc1
- 2.Se3#
- 2.Bxd3#
- 2.Qxd3#
- 1...Qc3
- 2.Se3#
- 1...d1S!
- threat
- 1.Qxe2?
- Keys
- 1.Qf4!
- threat
- 2.Bxd3#
- 1...Rxe4
- 2.Se3#
- 1...Bxe4
- 2.Rxc2#
- threat
- 1.Qf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 7
- Sets
- Q(a);N_GUARD::B(E),XB(d)
- Q(a);OGATE,P_PINS(D)::P(B),XQ(a)
- Q(a);N_GUARD,P_PINS(D),XR(C)::B(E),XB(d)
- R(c);P_SPINB(d)::R(C),XQ(a)
- R(c);P_SPINB(d),XB(E)::R(C),XQ(a)
- B(d);P_SPINR(c),XB(E)::S(F)
- P(f);OGATE,XS(F)::B(E),XP(f)
- Tries
- Try
- Q(A);P_PINB(d),XR(c)
- Threat
- DUALS(2)
- Vars
- P(f);OGATE,XS(F)::B(E),XP(f)
- P(b);::S(F)
- Q(a);::S(F)
- Q(a);OGATE,P_PINS(D)::P(B),XQ(a)
- Refutation
- P(b);
- Try
- Actual
- Q(A);
- Threat
- QAR(A)+B(E),DCHECK,XB(d)
- Vars
- R(c);N_GUARD,P_SPINR(c),XB(E)::S(F)
- B(d);N_GUARD,P_SPINB(d),XB(E)::R(C),XQ(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).