MESON Chess Problem Database
Problem Display
PID: 28643 (n3Q3/1p2p2p/1p2p2p/4n3/2P1k1P1/6P1/4K3/B7 w - - 0 1)
Casa, Alex
The Problemist, 2001
#2
6 + 9
SOLUTION
- SOUND
- Tries
- 1.Qb5?
- threat
- 2.Qxe5#
- 1...Sxc4
- 2.Qxc4#
- 1...Sxg4
- 2.Qb1#
- 1...Sf3
- 2.Qb1#
- 1...Sc6
- 2.Qb1#
- 1...Sg6
- 2.Qb1#
- 1...Sd7
- 2.Qb1#
- 1...Sf7
- 2.Qb1#
- 1...Sd3!
- threat
- 1.Qh5?
- threat
- 2.Qxe5#
- 1...Sxc4
- 2.Qh1#
- 1...Sxg4
- 2.Qxg4#
- 1...Sd3
- 2.Qh1#
- 1...Sc6
- 2.Qh1#
- 1...Sg6
- 2.Qh1#
- 1...Sd7
- 2.Qh1#
- 1...Sf7
- 2.Qh1#
- 1...Sf3!
- threat
- 1.Qd7?
- threat
- 2.Qd4#
- 1...Sxg4
- 2.Qd3#
- 1...Sf3
- 2.Qd3#
- 2.Qxb7#
- 1...Sc6
- 2.Qd3#
- 1...Sxd7!
- threat
- 1.Qf7?
- threat
- 2.Qf4#
- 1...Sxc4
- 2.Qf3#
- 1...Sd3
- 2.Qf3#
- 2.Qxh7#
- 1...Sg6
- 2.Qf3#
- 1...Sxf7!
- threat
- 1.Qb8?
- threat
- 2.Qxe5#
- 1...Sxc4
- 2.Qxb7#
- 1...Sxg4
- 2.Qf4#
- 1...Sd3
- 2.Qxb7#
- 1...Sf3
- 2.Qf4#
- 2.Qxb7#
- 1...Sc6
- 2.Qf4#
- 1...Sg6
- 2.Qxb7#
- 1...Sd7
- 2.Qf4#
- 2.Qxb7#
- 1...Sf7
- 2.Qf4#
- 2.Qxb7#
- 1...Sc7!
- threat
- 1.Qd8?
- threat
- 2.Qd4#
- 1...Sxg4
- 2.Qd3#
- 1...Sf3
- 2.Qd3#
- 1...Sc6
- 2.Qd3#
- 1...Sd7!
- threat
- 1.Qf8?
- threat
- 2.Qf4#
- 1...Sxc4
- 2.Qf3#
- 1...Sd3
- 2.Qf3#
- 1...Sg6
- 2.Qf3#
- 1...Sf7!
- threat
- 1.Qb5?
- Keys
- 1.Qh8!
- threat
- 2.Qxe5#
- 1...Sxc4
- 2.Qd4#
- 1...Sxg4
- 2.Qxh7#
- 1...Sd3
- 2.Qd4#
- 2.Qxh7#
- 1...Sf3
- 2.Qxh7#
- 1...Sc6
- 2.Qxh7#
- 1...Sg6
- 2.Qd4#
- 1...Sd7
- 2.Qd4#
- 2.Qxh7#
- 1...Sf7
- 2.Qd4#
- 2.Qxh7#
- threat
- 1.Qh8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- Tries
- Try
- Q(F);
- Threat
- QAR1(F),XS(b)
- Vars
- S(b);OGATE,XP(D)::QAR2(F),XS(b)
- S(b);N_GUARD,XP(E)::QAB(F)
- S(b);N_GUARD::QAB(F)
- Refutation
- S(b);
- Try
- Q(F);
- Threat
- QAR1(F),XS(b)
- Vars
- S(b);N_GUARD,XP(D)::QAB(F)
- S(b);OGATE,XP(E)::QAR2(F),XS(b)
- S(b);N_GUARD::QAB(F)
- Refutation
- S(b);
- Try
- Q(F);
- Threat
- QAR1(F)
- Vars
- S(b);N_GUARD,XP(E)::QAB1(F)
- S(b);N_GUARD::QAB1(F)
- Refutation
- S(b);XQ(F)
- Try
- Q(F);
- Threat
- QAR1(F)
- Vars
- S(b);N_GUARD,XP(D)::QAB1(F)
- S(b);N_GUARD::QAB1(F)
- Refutation
- S(b);XQ(F)
- Try
- Q(F);
- Threat
- QAR1(F),XS(b)
- Vars
- S(b);N_GUARD,XP(D)::QAB(F),XP(f)
- S(b);OGATE,XP(E)::QAR1(F)
- S(b);N_GUARD::QAB(F),XP(f)
- S(b);OGATE::QAR1(F)
- Refutation
- S(i);
- Try
- Q(F);
- Threat
- QAR1(F)
- Vars
- S(b);N_GUARD,XP(E)::QAB1(F)
- S(b);N_GUARD::QAB1(F)
- Refutation
- S(b);
- Try
- Q(F);
- Threat
- QAR1(F)
- Vars
- S(b);N_GUARD,XP(D)::QAB1(F)
- S(b);N_GUARD::QAB1(F)
- Refutation
- S(b);
- Try
- Actual
- Q(F);
- Threat
- QAR1(F),XS(b)
- Vars
- S(b);OGATE,XP(D)::QAR1(F)
- S(b);N_GUARD,XP(E)::QAB(F),XP(h)
- S(b);N_GUARD::QAB(F),XP(h)
- S(b);OGATE::QAR1(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).