MESON Chess Problem Database
Problem Display
PID: 68143 (3R4/8/2p5/K1k1p3/1p2p3/1P2p3/4nn2/1Q6 w - - 0 1)
Spawton, C
Chess, 1949
#2
4 + 8
SOLUTION
- SOUND
- Sets
- 1...Sc1
- 2.Qc2#
- 2.Qxc1#
- 1...Sg1
- 2.Qc2#
- 2.Qc1#
- 1...Sg3
- 2.Qc2#
- 2.Qc1#
- 1...Sf4
- 2.Qc2#
- 2.Qc1#
- 1...Sc1
- Tries
- 1.Qxe4?
- threat
- 2.Qxb4#
- 2.Qc4#
- 2.Qxe5#
- 1...Sc3
- 2.Qxe3#
- 2.Qxb4#
- 2.Qc4#
- 1...Sd4
- 2.Qxe5#
- 1...Sf4
- 2.Qc2#
- 2.Qxe3#
- 2.Qxb4#
- 2.Qc4#
- 1...Sd3
- 2.Qc4#
- 1...Sg4
- 2.Qxb4#
- 2.Qc4#
- 1...Sxe4!
- threat
- 1.Qc1+?
- 1...Sc3
- 2.Qxe3#
- 1...Sxc1!
- 1...Sc3
- 1.Qe1?
- threat
- 2.Qxb4#
- 1...Sc3
- 2.Qxe3#
- 1...Sd3!
- threat
- 1.Qxe4?
- Keys
- 1.Qf1!
- 1...Sc3
- 2.Qc4#
- 1...Sc1
- 2.Qc4#
- 2.Qxc1#
- 1...Sg1
- 2.Qc4#
- 2.Qc1#
- 1...Sg3
- 2.Qc4#
- 2.Qc1#
- 1...Sd4
- 2.Qc4#
- 1...Sf4
- 2.Qc4#
- 2.Qc1#
- 1...Sd1
- 2.Qf8#
- 1...Sh1
- 2.Qf8#
- 1...Sd3
- 2.Qf8#
- 1...Sh3
- 2.Qf8#
- 1...Sg4
- 2.Qf8#
- 1...Sc3
- 1.Qf1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- Tries
- Try
- Q(A);XP(e)
- Threat
- DUALS(3)
- Vars
- S(a);::QAR2(A),XP(g)
- S(b);::QAR1(A)
- Refutation
- S(b);XQ(A)
- Try
- Q(A);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAB(A),XP(c)
- Refutation
- S(a);XQ(A)
- Try
- Q(A);
- Threat
- QAB1(A),XP(d)
- Vars
- S(a);OGATE::QAB(A),XP(c)
- Refutation
- S(b);
- Try
- Actual
- Q(A);
- Vars
- S(a);OGATE::QAR1(A)
- S(b);OGATE::QAB(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).