MESON Chess Problem Database
Problem Display
PID: 29481 (7q/P1R1Rp2/1p1PP3/2PkBp2/1p1N4/1K2Q3/1nP4b/8 w - - 0 1)
Casa, Alex
Probleemblad, 2001
#2
11 + 8
SOLUTION
- SOUND
- Sets
- 1...Qxe5
- 2.a8Q#
- 2.a8B#
- 1...Qf6
- 2.a8Q#
- 2.a8B#
- 1...Qg7
- 2.a8Q#
- 2.a8B#
- 1...Qh3
- 2.a8Q#
- 2.a8B#
- 1...Qh4
- 2.a8Q#
- 2.a8B#
- 1...Qh5
- 2.a8Q#
- 2.a8B#
- 1...Qh6
- 2.a8Q#
- 2.a8B#
- 1...Qh7
- 2.a8Q#
- 2.a8B#
- 1...Qxe5
- Tries
- 1.Sb5?
- threat
- 2.Qd4#
- 1...Qxe5
- 2.a8Q#
- 2.a8B#
- 1...Bxe5
- 2.Qf3#
- 1...bxc5
- 2.Rxc5#
- 1...Qh3
- 2.a8Q#
- 2.a8B#
- 1...Qh4
- 2.a8Q#
- 2.a8B#
- 1...Bg1!
- threat
- 1.Sxf5?
- threat
- 2.Qd4#
- 1...Qxe5
- 2.a8Q#
- 2.a8B#
- 1...Bxe5
- 2.Qf3#
- 1...bxc5
- 2.Rxc5#
- 1...Qh3
- 2.a8Q#
- 2.a8B#
- 1...Qh4
- 2.a8Q#
- 2.a8B#
- 1...Bg1!
- threat
- 1.Sc6?
- threat
- 2.Sxb4#
- 2.Qd4#
- 1...Qxe5
- 2.Sxb4#
- 1...Bxe5
- 2.Sxb4#
- 1...bxc5
- 2.Qf3#
- 1...Bg1
- 2.Sxb4#
- 1...Qh3
- 2.Sxb4#
- 1...Sd3
- 2.Qd4#
- 1...Qh4!
- threat
- 1.Bf6?
- threat
- 2.Qf3#
- 1...Qxf6
- 2.a8Q#
- 2.a8B#
- 1...Qh3
- 2.a8Q#
- 2.a8B#
- 1...Qh4
- 2.a8Q#
- 2.a8B#
- 1...Qh5
- 2.a8Q#
- 2.a8B#
- 1...Be5
- 2.Qxe5#
- 1...bxc5!
- threat
- 1.Bxh8?
- threat
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Bxd6
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...fxe6
- 2.Qf3#
- 2.Qxe6#
- 2.a8Q#
- 2.a8B#
- 1...Bg1
- 2.Qf3#
- 2.Qe5#
- 2.a8Q#
- 2.a8B#
- 1...Bg3
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Bf4
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Be5
- 2.Qxe5#
- 2.a8Q#
- 2.a8B#
- 1...Sd1
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Sd3
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Sa4
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Sc4
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...f4
- 2.Qf3#
- 2.Qe5#
- 2.a8Q#
- 2.a8B#
- 1...b5
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...f6
- 2.a8Q#
- 2.a8B#
- 1...bxc5!
- threat
- 1.Re8?
- threat
- 2.a8Q#
- 2.a8B#
- 1...Qxe5
- 2.a8Q#
- 2.a8B#
- 1...Bxe5
- 2.a8Q#
- 2.a8B#
- 1...bxc5
- 2.a8Q#
- 2.a8B#
- 1...fxe6
- 2.a8Q#
- 2.a8B#
- 1...Bg1
- 2.a8Q#
- 2.a8B#
- 1...Qf6
- 2.a8Q#
- 2.a8B#
- 1...Qg7
- 2.a8Q#
- 2.a8B#
- 1...Qh3
- 2.a8Q#
- 2.a8B#
- 1...Qh4
- 2.a8Q#
- 2.a8B#
- 1...Qh5
- 2.a8Q#
- 2.a8B#
- 1...Qh6
- 2.a8Q#
- 2.a8B#
- 1...Qh7
- 2.a8Q#
- 2.a8B#
- 1...Qf8
- 2.a8Q#
- 2.a8B#
- 1...Qg8
- 2.a8Q#
- 2.a8B#
- 1...Bg3
- 2.a8Q#
- 2.a8B#
- 1...Bf4
- 2.a8Q#
- 2.a8B#
- 1...Sd1
- 2.a8Q#
- 2.a8B#
- 1...Sd3
- 2.a8Q#
- 2.a8B#
- 1...Sa4
- 2.a8Q#
- 2.a8B#
- 1...Sc4
- 2.a8Q#
- 2.a8B#
- 1...f4
- 2.a8Q#
- 2.a8B#
- 1...b5
- 2.a8Q#
- 2.a8B#
- 1...f6
- 2.a8Q#
- 2.a8B#
- 1...Qxe8!
- threat
- 1.exf7?
- threat
- 2.Qf3#
- 1...Qxe5
- 2.a8Q#
- 2.a8B#
- 1...Qh3
- 2.a8Q#
- 2.a8B#
- 1...Qh4
- 2.a8Q#
- 2.a8B#
- 1...Qh5
- 2.a8Q#
- 2.a8B#
- 1...Bxe5!
- threat
- 1.Sb5?
- Keys
- 1.Se2!
- threat
- 2.Qd4#
- 1...Qxe5
- 2.a8Q#
- 2.a8B#
- 1...Bxe5
- 2.Qf3#
- 1...bxc5
- 2.Rxc5#
- 1...Qh3
- 2.a8Q#
- 2.a8B#
- 1...Qh4
- 2.a8Q#
- 2.a8B#
- 1...Bg1
- 2.Sf4#
- threat
- 1.Se2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Q(h);N_GUARD,XB(F)::P=Q
- Q(h);N_GUARD::P=Q
- Q(h);N_GUARD,P_PINQ(C)::P=Q
- Tries
- Try
- S(D);
- Threat
- QAR1(C)
- Vars
- Q(h);N_GUARD,XB(F)::P=Q
- B(b);SBLOCK,XB(F)::QAB(C)
- P(f);OGATE,XP(E)::R1(J),XP(f)
- Q(h);N_GUARD,P_PINQ(C)::P=Q
- Q(h);N_GUARD::P=Q
- Refutation
- B(b);
- Try
- S(D);XP(e)
- Threat
- QAR1(C)
- Vars
- Q(h);N_GUARD,XB(F)::P=Q
- B(b);SBLOCK,XB(F)::QAB(C)
- P(f);OGATE,XP(E)::R1(J),XP(f)
- Q(h);N_GUARD,P_PINQ(C)::P=Q
- Q(h);N_GUARD::P=Q
- Refutation
- B(b);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(h);XB(F)::S(D),XP(c)
- B(b);XB(F)::S(D),XP(c)
- P(f);SBLOCK,XP(E)::QAB(C)
- B(b);::S(D),XP(c)
- Q(h);P_PINQ(C)::S(D),XP(c)
- S(a);::QAR1(C)
- Refutation
- Q(h);
- Try
- B(F);
- Threat
- QAB(C)
- Vars
- Q(h);N_GUARD,XB(F)::P=Q
- Q(h);N_GUARD,P_PINQ(C)::P=Q
- Q(h);N_GUARD::P=Q
- B(b);N_GUARD::QAR1(C),XB(b)
- Refutation
- P(f);XP(E)
- Try
- B(F);XQ(h)
- Threat
- DUALS(3)
- Vars
- P(g);::P=Q
- Refutation
- P(f);XP(E)
- Try
- R(K);
- Threat
- P=Q
- Vars
- Q(h);XB(F)::P=Q
- B(b);XB(F)::P=Q
- P(f);XP(E)::P=Q
- P(g);XP(H)::P=Q
- B(b);::P=Q
- Q(h);::P=Q
- Q(h);P_PINQ(C)::P=Q
- S(a);::P=Q
- P(e);::P=Q
- P(f);::P=Q
- P(g);::P=Q
- Refutation
- Q(h);XR(K)
- Try
- P(H);XP(g)
- Threat
- QAB(C)
- Vars
- Q(h);N_GUARD,XB(F)::P=Q
- Q(h);N_GUARD,P_PINQ(C)::P=Q
- Q(h);N_GUARD::P=Q
- Refutation
- B(b);XB(F)
- Try
- Actual
- S(D);
- Threat
- QAR1(C)
- Vars
- Q(h);N_GUARD,XB(F)::P=Q
- B(b);SBLOCK,XB(F)::QAB(C)
- P(f);OGATE,XP(E)::R1(J),XP(f)
- Q(h);N_GUARD,P_PINQ(C)::P=Q
- Q(h);N_GUARD::P=Q
- B(b);N_GUARD::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).