MESON Chess Problem Database
Problem Display
PID: 16273 (3b3n/4pnB1/2B1P2p/4P1k1/p1p4N/Q1P1P1NK/8/8 w - - 0 1)
Onkoud, Abdelaziz
The Problemist, 2000
#2
10 + 8
SOLUTION
- SOUND
- Sets
- 1...Ba5
- 2.Qxe7#
- 1...Bb6
- 2.Qxe7#
- 1...Bc7
- 2.Qxe7#
- 1...Sg6
- 2.Sf3#
- 1...h5
- 2.Se4#
- 1...Ba5
- Tries
- 1.Qc1?
- threat
- 2.e4#
- 1...Sg6
- 2.Sf3#
- 1...Bb6!
- threat
- 1.Qc5?
- 1...Sxe5
- 2.Qxe5#
- 1...Sd6
- 2.exd6#
- 1...Ba5
- 2.Qxe7#
- 1...Bb6
- 2.Qxe7#
- 1...Bc7
- 2.Qxe7#
- 1...Sg6
- 2.Sf3#
- 1...h5
- 2.Se4#
- 1...a3!
- 1...Sxe5
- 1.Qc1?
- Keys
- 1.Be8!
- 1...Sxe5
- 2.Se4#
- 1...Sd6
- 2.Sf3#
- 1...Ba5
- 2.Qxe7#
- 1...Bb6
- 2.Qxe7#
- 1...Bc7
- 2.Qxe7#
- 1...Sg6
- 2.Sf3#
- 1...h5
- 2.Se4#
- 1...Sxe5
- 1.Be8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(g);N_GUARD::QAB(A),XP(e)
- S(h);SBLOCK::S(F)
- P(d);SBLOCK::S(D)
- Tries
- Try
- Q(A);
- Threat
- QAB(A)+P(C)
- Vars
- S(h);SBLOCK::S(F)
- Refutation
- B(g);
- Try
- Q(A);
- Vars
- S(f);OGATE,P_SPINS(f),XP(G)::QAR2(A),XS(f)
- S(f);OGATE::QAR(A)+P(G),XS(f)
- B(g);N_GUARD::QAB(A),XP(e)
- S(h);SBLOCK::S(F)
- P(d);SBLOCK::S(D)
- Refutation
- P(a);
- Try
- Actual
- B(H);
- Vars
- S(f);XP(G)::S(D)
- S(f);::S(F)
- B(g);N_GUARD::QAB(A),XP(e)
- S(h);SBLOCK::S(F)
- P(d);SBLOCK::S(D)
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).