MESON Chess Problem Database
Problem Display
PID: 2911 (8/n7/1n6/N1p1kP1N/1pP5/qP6/PR6/BBKR4 w - - 0 1)
Williams, Philip Hamilton
Hampstead and Highgate Express, 1906
#2
11 + 6
| 14907 | Good Companion Chess Problem Club | 1917 |
| 2681 | All Change Here! | 1919 |
| 15351 | SCPF/BCPS Black Books | 2015 |
SOLUTION
- SOUND
- Sets
- 1...Qxb2+
- 2.Bxb2#
- 1...Qxa2
- 2.Rxa2#
- 2.Re2#
- 1...Qxb3
- 2.Re2#
- 2.Rxb3#
- 1...Qa4
- 2.Rbd2#
- 2.Re2#
- 2.Rf2#
- 2.Rg2#
- 2.Rh2#
- 1...Qxa5
- 2.Rbd2#
- 2.Re2#
- 2.Rf2#
- 2.Rg2#
- 2.Rh2#
- 1...Sa4
- 2.Rd5#
- 1...Sxc4
- 2.Sxc4#
- 1...Sd5
- 2.Rxd5#
- 1...Sd7
- 2.Rd5#
- 1...Sa8
- 2.Rd5#
- 1...Sbc8
- 2.Rd5#
- 1...Sb5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sac8
- 2.Sc6#
- 1...Qxb2+
- Tries
- 1.Rd7?
- 1...Qxb2+
- 2.Bxb2#
- 1...Qxa2
- 2.Rxa2#
- 2.Re2#
- 1...Qxb3
- 2.Re2#
- 2.Rxb3#
- 1...Qxa5
- 2.Rbd2#
- 2.Re2#
- 2.Rf2#
- 2.Rg2#
- 2.Rh2#
- 1...Sxc4
- 2.Sxc4#
- 1...Sd5
- 2.Rxd5#
- 1...Qa4
- 2.Rbd2#
- 2.Re2#
- 2.Rf2#
- 2.Rg2#
- 2.Rh2#
- 1...Sa4
- 2.Rd5#
- 1...Sa8
- 2.Rd5#
- 1...Sbc8
- 2.Rd5#
- 1...Sb5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sac8
- 2.Sc6#
- 1...Sxd7!
- 1...Qxb2+
- 1.Rd8?
- 1...Qxb2+
- 2.Bxb2#
- 1...Qxa2
- 2.Rxa2#
- 2.Re2#
- 1...Qxb3
- 2.Re2#
- 2.Rxb3#
- 1...Qxa5
- 2.Rbd2#
- 2.Re2#
- 2.Rf2#
- 2.Rg2#
- 2.Rh2#
- 1...Sxc4
- 2.Sxc4#
- 1...Sd5
- 2.Rxd5#
- 1...Qa4
- 2.Rbd2#
- 2.Re2#
- 2.Rf2#
- 2.Rg2#
- 2.Rh2#
- 1...Sa4
- 2.Rd5#
- 1...Sa8
- 2.Rd5#
- 1...Sbc8
- 2.Rd5#
- 1...Sb5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sac8
- 2.Sc6#
- 1...Sd7!
- 1...Qxb2+
- 1.Rd7?
- Keys
- 1.Bc2!
- 1...Qxb2+
- 2.Bxb2#
- 1...Qxa2
- 2.Rxa2#
- 1...Qxb3
- 2.Rxb3#
- 1...Qxa5
- 2.Rb1#
- 1...Sxc4
- 2.Sxc4#
- 1...Sd5
- 2.Rxd5#
- 1...Qa4
- 2.Rb1#
- 1...Sa4
- 2.Rd5#
- 1...Sd7
- 2.Rd5#
- 1...Sa8
- 2.Rd5#
- 1...Sbc8
- 2.Rd5#
- 1...Sb5
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sac8
- 2.Sc6#
- 1...Qxb2+
- 1.Bc2!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- Q(a);CHECK,OGATE,P_SPINQ(a),XR(F)::B(A),XQ(a)
- S(e);N_GUARD::R1(D)
- S(e);XP(H)::S(I),XS(e)
- S(e);N_GUARD::R1(D),XS(e)
- S(f);N_GUARD::S(I)
- S(f);N_GUARD::S(I),XS(f)
- Tries
- Try
- R(D);
- Vars
- Q(a);CHECK,OGATE,P_SPINQ(a),XR(F)::B(A),XQ(a)
- S(e);XP(H)::S(I),XS(e)
- S(e);N_GUARD::R1(D),XS(e)
- S(e);N_GUARD::R1(D)
- S(f);N_GUARD::S(I)
- S(f);N_GUARD::S(I),XS(f)
- Refutation
- S(e);XR(D)
- Try
- R(D);
- Vars
- Q(a);CHECK,OGATE,P_SPINQ(a),XR(F)::B(A),XQ(a)
- S(e);XP(H)::S(I),XS(e)
- S(e);N_GUARD::R1(D),XS(e)
- S(e);N_GUARD::R1(D)
- S(f);N_GUARD::S(I)
- S(f);N_GUARD::S(I),XS(f)
- Refutation
- S(e);
- Try
- Actual
- B(B);
- Vars
- Q(a);CHECK,OGATE,P_SPINQ(a),XR(F)::B(A),XQ(a)
- Q(a);N_PINR(F),XP(E)::B(A)+R(F),XQ(a)
- Q(a);N_PINR(F),XP(G)::B(A)+R(F),XQ(a)
- Q(a);N_PINR(F),XS(I)::B(A)+R(F)
- S(e);XP(H)::S(I),XS(e)
- S(e);N_GUARD::R1(D),XS(e)
- Q(a);N_PINR(F)::B(A)+R(F)
- S(e);N_GUARD::R1(D)
- S(f);N_GUARD::S(I)
- S(f);N_GUARD::S(I),XS(f)
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).