MESON Chess Problem Database
Problem Display
PID: 8198 (8/8/2QPp1B1/K1pn1q2/4k3/4pp2/4N2B/1n2N3 w - - 0 1)
Shanahan, Ian
The Problemist, 1995
#2
7 + 8
SOLUTION
- SOUND
- Sets
- 1...c4
- 2.Qxc4#
- 1...c4
- Tries
- 1.Qa4+?
- 1...c4
- 2.Qc2#
- 2.Qxc4#
- 1...Sb4!
- 1...c4
- 1.Qb5?
- threat
- 2.Qd3#
- 2.Qc4#
- 2.Qxb1#
- 1...Qxg6
- 2.Qd3#
- 2.Qxb1#
- 1...fxe2
- 2.Qd3#
- 2.Qc4#
- 1...Sdc3
- 2.Qd3#
- 2.Qc4#
- 1...Sb4
- 2.Qc4#
- 1...Sb6
- 2.Qd3#
- 1...Sf6
- 2.Qd3#
- 2.Qc4#
- 1...Sc7
- 2.Qd3#
- 2.Qc4#
- 1...Se7
- 2.Qd3#
- 2.Qc4#
- 1...Sd2
- 2.Qd3#
- 1...Sa3
- 2.Qd3#
- 1...Sbc3
- 2.Qd3#
- 2.Qc4#
- 1...c4
- 2.Qxc4#
- 2.Qxb1#
- 1...Sf4!
- threat
- 1.Qa6?
- threat
- 2.Qd3#
- 2.Qc4#
- 1...Qxg6
- 2.Qd3#
- 1...Sb4
- 2.Qc4#
- 1...Sb6
- 2.Qd3#
- 1...Sd2
- 2.Qd3#
- 1...Sa3
- 2.Qd3#
- 1...c4
- 2.Qxc4#
- 1...Sf4!
- threat
- 1.Qa4+?
- Keys
- 1.Qxc5!
- threat
- 2.Qd4#
- 2.Qc2#
- 2.Qc4#
- 1...Qxg6
- 2.Qc2#
- 1...fxe2
- 2.Qc4#
- 1...Sd2
- 2.Qd4#
- 2.Qc2#
- 1...Sa3
- 2.Qd4#
- 1...Sbc3
- 2.Qd4#
- 2.Qc4#
- 1...Sdc3
- 2.Qe5#
- 1...Sb4
- 2.Qe5#
- 1...Sf4
- 2.Sg3#
- 1...Sb6
- 2.Qe5#
- 1...Sf6
- 2.Qe5#
- 1...Sc7
- 2.Qe5#
- 1...Se7
- 2.Qe5#
- 1...e5
- 2.Qc2#
- 2.Qc4#
- threat
- 1.Qxc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 1
- Sets
- P(e);OGATE::QAR2(E),XP(e)
- Tries
- Try
- Q(E);CHECK,N_PINS(f)
- Refutation
- S(f);P_SPINS(f)
- Try
- Q(E);N_PINS(f)
- Threat
- DUALS(3)
- Vars
- S(f);::QAR2(E)
- S(f);::QAB1(E)
- S(a);::QAB1(E)
- Refutation
- S(f);
- Try
- Q(E);N_PINS(f)
- Threat
- DUALS(2)
- Vars
- Q(g);N_SPINQ(g),XB(G)::QAB1(E)
- S(f);::QAR2(E)
- S(f);::QAB1(E)
- S(a);::QAB1(E)
- P(e);::QAR2(E),XP(e)
- Refutation
- S(f);
- Try
- Actual
- Q(E);N_PINS(f),XP(e)
- Threat
- DUALS(3)
- Vars
- Q(g);N_SPINQ(g),XB(G)::QAB(E)
- P(c);XS(B)::QAR2(E)
- S(a);::QAR1(E)
- S(f);OGATE,P_PINQ(E)::QAR1(E)
- S(f);P_PINQ(E),SBLOCK::S(B)
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).