MESON Chess Problem Database
Problem Display
PID: 15424 (8/K7/3Ppp2/5n1R/3QN1pb/1R3bqk/4N3/6BB w - - 0 1)
Saunders, Denis M
The Problemist, 1983
#2
9 + 8
| 3936 | The Wizard of Oz | 1999 |
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Sf4#
- 1...Qf2
- 2.Sf4#
- 2.Sxf2#
- 1...Qf4
- 2.Sxf4#
- 2.Sf2#
- 1...Qe5
- 2.Sf2#
- 1...Qxd6
- 2.Sf2#
- 1...Qg2
- 2.Sf4#
- 1...Bxh1
- 2.Sf4#
- 1...Bxe2
- 2.Sf2#
- 1...Bg2
- 2.Sf4#
- 2.Sf2#
- 1...Bxe4
- 2.Sf4#
- 1...Qe1
- Tries
- 1.Bg2+?
- 1...Qxg2
- 2.Sf4#
- 1...Bxg2
- 2.Sf4#
- 2.Sf2#
- 1...Kxg2!
- 1...Qxg2
- 1.Qf2?
- 1...Qxf2+
- 2.Sxf2#
- 1...Qxd6
- 2.Bg2#
- 2.Qf1#
- 2.Qg2#
- 1...Qxg1
- 2.Sxg1#
- 2.Sf4#
- 1...Bxh1
- 2.Sf4#
- 2.Qh2#
- 1...Bxe2
- 2.Bg2#
- 2.Qg2#
- 2.Qh2#
- 1...Bxe4
- 2.Sf4#
- 2.Qh2#
- 1...Sxd6
- 2.Qxg3#
- 1...Qh2
- 2.Qxh2#
- 1...Qf4
- 2.Sxf4#
- 2.Bg2#
- 2.Qf1#
- 2.Qg2#
- 1...Qe5
- 2.Bg2#
- 2.Qf1#
- 2.Qg2#
- 1...Qg2
- 2.Sf4#
- 2.Bxg2#
- 2.Qxg2#
- 1...Bg2
- 2.Sf4#
- 2.Bxg2#
- 2.Qxg2#
- 1...Se3
- 2.Qxg3#
- 1...Sd4
- 2.Qxg3#
- 1...Sh6
- 2.Qxg3#
- 1...Se7
- 2.Qxg3#
- 1...Sg7
- 2.Qxg3#
- 1...e5!
- 1...Qxf2+
- 1.Qxf6?
- threat
- 2.Sg5#
- 1...Qf2+
- 2.Sxf2#
- 1...Bxh1
- 2.Sf4#
- 1...Bxe4
- 2.Sf4#
- 1...Qf4
- 2.Sxf4#
- 2.Sf2#
- 1...Qxg1+!
- threat
- 1.Bg2+?
- Keys
- 1.Qe5!
- 1...Qf2+
- 2.Sxf2#
- 1...Qxg1+
- 2.Sxg1#
- 1...Qxe5
- 2.Sf2#
- 1...Bxh1
- 2.Sf4#
- 1...Bxe2
- 2.Sf2#
- 1...Bxe4
- 2.Sf4#
- 1...Sxd6
- 2.Qxg3#
- 1...fxe5
- 2.Sg5#
- 1...Qe1
- 2.Sf4#
- 2.Qh2#
- 1...Qh2
- 2.Qxh2#
- 1...Qf4
- 2.Sxf4#
- 2.Sf2#
- 1...Qg2
- 2.Sf4#
- 1...Bg2
- 2.Sf4#
- 2.Sf2#
- 1...Se3
- 2.Qxg3#
- 1...Sd4
- 2.Qxg3#
- 1...Sh6
- 2.Qxg3#
- 1...Se7
- 2.Qxg3#
- 1...Sg7
- 2.Qxg3#
- 1...Qf2+
- 1.Qe5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 2
- Sets
- Q(b);N_GUARD,N_SPINB(e),P_SPINB(a)::S(C)
- Q(b);N_GUARD,N_SPINB(e),P_SPINB(a)::S(F)
- Q(b);N_GUARD,N_SPINB(e),P_SPINB(a),XP(H)::S(F)
- B(a);P_SPINQ(b),XB(B)::S(C)
- B(a);P_SPINQ(b),XS(C)::S(F)
- B(a);P_SPINQ(b),XS(F)::S(C)
- Tries
- Try
- B(B);CHECK
- Vars
- Q(b);N_SPINB(e),P_SPINB(a),XB(B)::S(C)
- Refutation
- K(c);N_SPINB(e),S_FLIGHT,XB(B)
- Try
- Q(E);
- Vars
- Q(b);CHECK,N_SPINB(e),P_SPINB(a),XQ(E)::S(F),XQ(b)
- S(f);N_GUARD,XP(H)::QAR1(E),XQ(b)
- Q(b);N_GUARD,N_SPINB(e),P_SPINB(a)::QAR1(E),XQ(b)
- S(f);N_GUARD::QAR1(E),XQ(b)
- Refutation
- P(g);
- Try
- Q(E);XP(h)
- Threat
- S(F)
- Vars
- Q(b);CHECK,N_GUARD,N_SPINB(e),P_SPINB(a)::S(F),XQ(b)
- B(a);P_SPINQ(b),XB(B)::S(C)
- B(a);P_SPINQ(b),XS(F)::S(C)
- Refutation
- Q(b);CHECK,N_SPINB(e),P_SPINB(a),XB(A)
- Try
- Actual
- Q(E);
- Vars
- Q(b);CHECK,N_GUARD,N_SPINB(e),P_SPINB(a)::S(F),XQ(b)
- Q(b);CHECK,N_SPINB(e),P_SPINB(a),XB(A)::S(C),XQ(b)
- Q(b);N_GUARD,N_SPINB(e),P_SPINB(a),XQ(E)::S(F)
- B(a);P_SPINQ(b),XB(B)::S(C)
- B(a);P_SPINQ(b),XS(C)::S(F)
- B(a);P_SPINQ(b),XS(F)::S(C)
- S(f);N_GUARD,XP(H)::QAR1(E),XQ(b)
- P(h);N_GUARD,XQ(E)::S(F)
- Q(b);N_SPINB(e),OGATE,P_SPINB(a)::QAR1(E),XQ(b)
- Q(b);N_GUARD,N_SPINB(e),P_SPINB(a)::S(C)
- S(f);N_GUARD::QAR1(E),XQ(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).