MESON Chess Problem Database
Problem Display
PID: 132355 (7q/P1RpPPR1/1p1P4/2PkB3/2pN3p/1rp1Q1bB/2P1P1K1/8 w - - 0 1)
Casa, Alex
Sinfonie Scacchistiche, 1995
#2
14 + 9
SOLUTION
- SOUND
- Sets
- 1...Qxg7
- 2.a8Q#
- 2.a8B#
- 1...Qh5
- 2.a8Q#
- 2.a8B#
- 1...Qh6
- 2.a8Q#
- 2.a8B#
- 1...Qh7
- 2.a8Q#
- 2.a8B#
- 1...Qg8
- 2.fxg8Q#
- 2.fxg8B#
- 1...Qxg7
- Tries
- 1.Kf1?
- threat
- 2.Bg2#
- 1...Qh5
- 2.a8Q#
- 2.a8B#
- 1...Qh7
- 2.a8Q#
- 2.a8B#
- 1...Rb1+!
- threat
- 1.Kh1?
- threat
- 2.Bg2#
- 1...Qh5
- 2.a8Q#
- 2.a8B#
- 1...Qh7
- 2.a8Q#
- 2.a8B#
- 1...Rb1+!
- threat
- 1.Kf3?
- threat
- 2.Qe4#
- 1...Qh7
- 2.a8Q#
- 2.a8B#
- 1...Qh5+!
- threat
- 1.Sxb3?
- threat
- 2.Qd4#
- 1...Bxe5
- 2.Qf3#
- 1...bxc5
- 2.Rxc5#
- 1...Bf2!
- threat
- 1.Sf3?
- threat
- 2.Qd4#
- 1...Bxe5
- 2.Qxe5#
- 1...bxc5
- 2.Rxc5#
- 1...Bf2!
- threat
- 1.Sb5?
- threat
- 2.Qd4#
- 1...Bxe5
- 2.Qf3#
- 1...bxc5
- 2.Rxc5#
- 1...Bf2!
- threat
- 1.Sc6?
- threat
- 2.Qd4#
- 1...Bxe5
- 2.Qxe5#
- 1...bxc5
- 2.Qf3#
- 1...Bf2!
- threat
- 1.Bg4?
- threat
- 2.Bf3#
- 1...Qh5
- 2.a8Q#
- 2.a8B#
- 1...Qh7
- 2.a8Q#
- 2.a8B#
- 1...h3+!
- threat
- 1.Bxg3?
- threat
- 2.Qe5#
- 1...Qxg7
- 2.a8Q#
- 2.a8B#
- 1...Qh5
- 2.a8Q#
- 2.a8B#
- 1...hxg3!
- threat
- 1.Bf4?
- threat
- 2.Qe5#
- 1...Qxg7
- 2.a8Q#
- 2.a8B#
- 1...Qh5
- 2.a8Q#
- 2.a8B#
- 1...Bxf4!
- threat
- 1.Bf6?
- threat
- 2.Qf3#
- 1...Qh5
- 2.a8Q#
- 2.a8B#
- 1...Qh7
- 2.a8Q#
- 2.a8B#
- 1...Be5
- 2.Qxe5#
- 1...bxc5!
- threat
- 1.Rg4?
- threat
- 2.Qe4#
- 1...Qxe5
- 2.a8Q#
- 2.a8B#
- 1...Qh7
- 2.a8Q#
- 2.a8B#
- 1...Bf4!
- threat
- 1.Rg5?
- threat
- 2.Qf3#
- 1...Qxe5
- 2.a8Q#
- 2.a8B#
- 1...Qf6
- 2.a8Q#
- 2.a8B#
- 1...Qh5
- 2.a8Q#
- 2.a8B#
- 1...Qh7
- 2.a8Q#
- 2.a8B#
- 1...Bxe5!
- threat
- 1.Qf4?
- threat
- 2.e4#
- 1...Qh7
- 2.a8Q#
- 2.a8B#
- 1...Bxf4!
- threat
- 1.e8Q?
- threat
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Qxg7
- 2.Qf3#
- 2.Qa8#
- 2.a8Q#
- 2.a8B#
- 1...Bxe5
- 2.Q3xe5#
- 2.Q8xe5#
- 2.a8Q#
- 2.a8B#
- 1...bxc5
- 2.Qf3#
- 1...Bf2
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Qh5
- 2.Qa8#
- 2.a8Q#
- 2.a8B#
- 1...Qh6
- 2.Qf3#
- 2.Qa8#
- 2.a8Q#
- 2.a8B#
- 1...Qh7
- 2.Qa8#
- 2.a8Q#
- 2.a8B#
- 1...Qf8
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Qg8
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Rb1
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Rb2
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Ra3
- 2.Qf3#
- 1...Rb4
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Rb5
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Be1
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Bh2
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Bf4
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...b5
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Qxe8!
- threat
- 1.e8S?
- threat
- 2.Sf6#
- 2.a8Q#
- 2.a8B#
- 1...Qxg7
- 2.a8Q#
- 2.a8B#
- 1...Bxe5
- 2.a8Q#
- 2.a8B#
- 1...bxc5
- 2.Sf6#
- 1...Bf2
- 2.Sf6#
- 2.a8Q#
- 2.a8B#
- 1...Qh5
- 2.Sf6#
- 2.a8Q#
- 2.a8B#
- 1...Qh6
- 2.a8Q#
- 2.a8B#
- 1...Qh7
- 2.Sf6#
- 2.a8Q#
- 2.a8B#
- 1...Qf8
- 2.Sf6#
- 2.a8Q#
- 2.a8B#
- 1...Qg8
- 2.Sf6#
- 2.a8Q#
- 2.a8B#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Rb1
- 2.Sf6#
- 2.a8Q#
- 2.a8B#
- 1...Rb2
- 2.Sf6#
- 2.a8Q#
- 2.a8B#
- 1...Ra3
- 2.Sf6#
- 1...Rb4
- 2.Sf6#
- 2.a8Q#
- 2.a8B#
- 1...Rb5
- 2.Sf6#
- 2.a8Q#
- 2.a8B#
- 1...Be1
- 2.Sf6#
- 2.a8Q#
- 2.a8B#
- 1...Bh2
- 2.Sf6#
- 2.a8Q#
- 2.a8B#
- 1...Bf4
- 2.Sf6#
- 2.a8Q#
- 2.a8B#
- 1...b5
- 2.Sf6#
- 2.a8Q#
- 2.a8B#
- 1...Qxe8!
- threat
- 1.e8R?
- threat
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Qxg7
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Bxe5
- 2.Rxe5#
- 2.Qxe5#
- 2.a8Q#
- 2.a8B#
- 1...bxc5
- 2.Qf3#
- 1...Bf2
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Qh5
- 2.a8Q#
- 2.a8B#
- 1...Qh6
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Qh7
- 2.a8Q#
- 2.a8B#
- 1...Qf8
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Qg8
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 2.fxg8Q#
- 2.fxg8B#
- 1...Rb1
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Rb2
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Ra3
- 2.Qf3#
- 1...Rb4
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Rb5
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Be1
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Bh2
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Bf4
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...b5
- 2.Qf3#
- 2.a8Q#
- 2.a8B#
- 1...Qxe8!
- threat
- 1.f8Q?
- threat
- 2.Qff3#
- 2.Qf7#
- 2.a8Q#
- 2.a8B#
- 1...Qxg7
- 2.Qff3#
- 2.Qa8#
- 2.a8Q#
- 2.a8B#
- 1...Bxe5
- 2.Qff3#
- 2.Qf7#
- 2.a8Q#
- 2.a8B#
- 1...bxc5
- 2.Qff3#
- 2.Qf7#
- 1...Bf2
- 2.Qff3#
- 2.Qf7#
- 2.a8Q#
- 2.a8B#
- 1...Qh6
- 2.Qff3#
- 2.Qa8#
- 2.a8Q#
- 2.a8B#
- 1...Qh7
- 2.Qf7#
- 2.Qa8#
- 2.a8Q#
- 2.a8B#
- 1...Qg8
- 2.Qff3#
- 2.Qxg8#
- 2.a8Q#
- 2.a8B#
- 1...Rb1
- 2.Qff3#
- 2.Qf7#
- 2.a8Q#
- 2.a8B#
- 1...Rb2
- 2.Qff3#
- 2.Qf7#
- 2.a8Q#
- 2.a8B#
- 1...Ra3
- 2.Qff3#
- 2.Qf7#
- 1...Rb4
- 2.Qff3#
- 2.Qf7#
- 2.a8Q#
- 2.a8B#
- 1...Rb5
- 2.Qff3#
- 2.Qf7#
- 2.a8Q#
- 2.a8B#
- 1...Be1
- 2.Qff3#
- 2.Qf7#
- 2.a8Q#
- 2.a8B#
- 1...Bh2
- 2.Qff3#
- 2.Qf7#
- 2.a8Q#
- 2.a8B#
- 1...Bf4
- 2.Qf7#
- 2.a8Q#
- 2.a8B#
- 1...b5
- 2.Qff3#
- 2.Qf7#
- 2.a8Q#
- 2.a8B#
- 1...Qxf8!
- threat
- 1.Kf1?
- Keys
- 1.Se6!
- threat
- 2.Qd4#
- 1...Bxe5
- 2.Qf3#
- 1...bxc5
- 2.Rxc5#
- 1...Bf2
- 2.Sf4#
- threat
- 1.Se6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Q(i);N_GUARD,XR(N)::P=Q
- Q(i);N_GUARD::P=Q
- Q(i);OGATE::PXQ(i)=Q
- Tries
- Try
- K(C);S_FLIGHT
- Threat
- B(E)
- Vars
- Q(i);N_GUARD::P=Q
- Refutation
- R(a);CHECK
- Try
- K(C);S_FLIGHT
- Threat
- B(E)
- Vars
- Q(i);N_GUARD::P=Q
- Refutation
- R(a);CHECK
- Try
- K(C);S_FLIGHT
- Threat
- QAB1(D)
- Vars
- Q(i);N_GUARD::P=Q
- Refutation
- Q(i);CHECK
- Try
- S(F);XR(a)
- Threat
- QAR1(D)
- Vars
- B(c);SBLOCK,XB(H)::QAB(D)
- P(g);OGATE,XP(G)::R1(K),XP(g)
- Refutation
- B(c);
- Try
- S(F);
- Threat
- QAR1(D)
- Vars
- B(c);OGATE,XB(H)::QAR1(D),XB(c)
- P(g);OGATE,XP(G)::R1(K),XP(g)
- Refutation
- B(c);
- Try
- S(F);
- Threat
- QAR1(D)
- Vars
- B(c);SBLOCK,XB(H)::QAB(D)
- P(g);OGATE,XP(G)::R1(K),XP(g)
- Refutation
- B(c);
- Try
- S(F);
- Threat
- QAR1(D)
- Vars
- B(c);OGATE,XB(H)::QAR1(D),XB(c)
- P(g);SBLOCK,XP(G)::QAB(D)
- Refutation
- B(c);
- Try
- B(E);
- Threat
- B(E)
- Vars
- Q(i);N_GUARD::P=Q
- Refutation
- P(e);CHECK
- Try
- B(H);XB(c)
- Threat
- QAR1(D)
- Vars
- Q(i);N_GUARD,P_PINB(H),XR(N)::P=Q
- Q(i);N_GUARD::P=Q
- Refutation
- P(e);XB(H)
- Try
- B(H);
- Threat
- QAR1(D)
- Vars
- Q(i);N_GUARD,XR(N)::P=Q
- Q(i);N_GUARD::P=Q
- Refutation
- B(c);XB(H)
- Try
- B(H);
- Threat
- QAB(D)
- Vars
- Q(i);N_GUARD::P=Q
- B(c);N_GUARD::QAR1(D),XB(c)
- Refutation
- P(g);XP(G)
- Try
- R(N);
- Threat
- QAB1(D)
- Vars
- Q(i);N_GUARD,XB(H)::P=Q
- Q(i);N_GUARD::P=Q
- Refutation
- B(c);
- Try
- R(N);
- Threat
- QAB(D)
- Vars
- Q(i);N_GUARD,P_SPINQ(i),XB(H)::P=Q
- Q(i);N_GUARD::P=Q
- Refutation
- B(c);P_SPINB(c),XB(H)
- Try
- Q(D);
- Threat
- P(B)
- Vars
- Q(i);N_GUARD::P=Q
- Refutation
- B(c);XQ(D)
- Try
- P(L);
- Threat
- DUALS(3)
- Vars
- P(g);XP(G)::QAB(D)
- R(a);::QAB(D)
- Refutation
- Q(i);XQ(L)
- Try
- P(L);
- Threat
- DUALS(3)
- Vars
- Q(i);XR(N)::P=Q
- B(c);XB(H)::P=Q
- P(g);XP(G)::S(L)
- Q(i);::P=Q
- R(a);::S(L)
- Refutation
- Q(i);XS(L)
- Try
- P(L);
- Threat
- DUALS(3)
- Vars
- P(g);XP(G)::QAB(D)
- Q(i);::P=Q
- R(a);::QAB(D)
- Refutation
- Q(i);XR(L)
- Try
- P(M);
- Threat
- DUALS(4)
- Refutation
- Q(i);XQ(M)
- Try
- Actual
- S(F);
- Threat
- QAR1(D)
- Vars
- B(c);SBLOCK,XB(H)::QAB(D)
- P(g);OGATE,XP(G)::R1(K),XP(g)
- B(c);N_GUARD::S(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).