MESON Chess Problem Database
Problem Display
PID: 15277 (3q2Q1/4R2n/p2pPB2/N1PkN3/1P3R2/3P2b1/2r2p2/5n1K w - - 0 1)
Tinebra, Vincenzo
18th Place, 02. WCCT, 1980-1983
#2
11 + 9
SOLUTION
- SOUND
- Sets
- 1...Qxa5
- 2.Qa8#
- 1...Qd7
- 2.exd7#
- 1...Qa8
- 2.Qxa8#
- 1...Rc4
- 2.dxc4#
- 1...Bh2
- 2.Qg2#
- 1...Bh4
- 2.Qg2#
- 1...dxc5
- 2.Qxd8#
- 1...dxe5
- 2.Qxd8#
- 1...Qxa5
- Tries
- 1.Sac6?
- threat
- 2.Rd4#
- 1...Bxf4
- 2.Qg2#
- 1...dxc5
- 2.Qxd8#
- 1...Rc4
- 2.dxc4#
- 1...dxe5!
- threat
- 1.Sf3?
- threat
- 2.Rd4#
- 1...Qxa5
- 2.Qa8#
- 1...dxc5
- 2.Qxd8#
- 1...Rc4
- 2.dxc4#
- 1...Bxf4!
- threat
- 1.Sg4?
- threat
- 2.Rd4#
- 1...Qxa5
- 2.Qa8#
- 1...Sxf6
- 2.Qg5#
- 1...dxc5
- 2.Qxd8#
- 1...Rc4
- 2.dxc4#
- 1...Bxf4!
- threat
- 1.Sec6?
- threat
- 2.Rd4#
- 1...Bxf4
- 2.Qg2#
- 1...dxc5
- 2.Qxd8#
- 1...Rc4
- 2.dxc4#
- 1...Qxa5!
- threat
- 1.Sg6?
- threat
- 2.Rd4#
- 1...Qxa5
- 2.Qa8#
- 1...Bxf4
- 2.Sxf4#
- 1...dxc5
- 2.Qxd8#
- 1...Rc4
- 2.dxc4#
- 1...Sxf6!
- threat
- 1.Sd7?
- threat
- 2.Rd4#
- 1...Qxa5
- 2.Qa8#
- 1...Bxf4
- 2.Qg2#
- 1...Sxf6
- 2.Qg5#
- 1...Rc4
- 2.dxc4#
- 1...dxc5!
- threat
- 1.Sf7?
- threat
- 2.Rd4#
- 1...Qxa5
- 2.Qa8#
- 1...Bxf4
- 2.Qg2#
- 1...Sxf6
- 2.Qg5#
- 1...dxc5
- 2.Qxd8#
- 1...Rc4
- 2.dxc4#
- 1...Qxe7!
- threat
- 1.Qxd8?
- threat
- 2.Qxd6#
- 2.Qa8#
- 1...Bxf4
- 2.Qxd6#
- 1...Sxf6
- 2.Qxd6#
- 1...Rxc5!
- threat
- 1.Sac6?
- Keys
- 1.Sec4!
- threat
- 2.Rd4#
- 1...Qxa5
- 2.Qa8#
- 1...Rxc4
- 2.dxc4#
- 1...Bxf4
- 2.Qg2#
- 1...Sxf6
- 2.Qg5#
- 1...dxc5
- 2.Qxd8#
- threat
- 1.Sec4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- Q(i);OGATE,XS(E)::QAB(K)
- Q(i);OGATE::QAB(K)+P(H),XQ(i)
- Q(i);OGATE::QAB(K),XQ(i)
- R(b);OGATE::P(B),XR(b)
- B(d);OGATE::QAB(K)
- P(g);OGATEB,XP(F)::QAR(K),XQ(i)
- P(g);OGATEB,XS(G)::QAR(K),XQ(i)
- Tries
- Try
- S(E);
- Threat
- R1(D)
- Vars
- B(d);OGATE,XR(D)::QAB(K)
- P(g);OGATEB,XP(F)::QAR(K),XQ(i)
- R(b);OGATE::P(B),XR(b)
- Refutation
- P(g);XS(G)
- Try
- S(G);
- Threat
- R1(D)
- Vars
- Q(i);OGATE,XS(E)::QAB(K)
- P(g);OGATEB,XP(F)::QAR(K),XQ(i)
- R(b);OGATE::P(B),XR(b)
- Refutation
- B(d);XR(D)
- Try
- S(G);
- Threat
- R1(D)
- Vars
- Q(i);OGATE,XS(E)::QAB(K)
- S(h);N_GUARD,XB(I)::QAR(K)
- P(g);OGATEB,XP(F)::QAR(K),XQ(i)
- R(b);OGATE::P(B),XR(b)
- Refutation
- B(d);XR(D)
- Try
- S(G);
- Threat
- R1(D)
- Vars
- B(d);OGATE,XR(D)::QAB(K)
- P(g);OGATEB,XP(F)::QAR(K),XQ(i)
- R(b);OGATE::P(B),XR(b)
- Refutation
- Q(i);XS(E)
- Try
- S(G);
- Threat
- R1(D)
- Vars
- Q(i);OGATE,XS(E)::QAB(K)
- B(d);XR(D)::S(G),XB(d)
- P(g);OGATEB,XP(F)::QAR(K),XQ(i)
- R(b);OGATE::P(B),XR(b)
- Refutation
- S(h);XB(I)
- Try
- S(G);
- Threat
- R1(D)
- Vars
- Q(i);OGATE,XS(E)::QAB(K)
- B(d);OGATE,XR(D)::QAB(K)
- S(h);N_GUARD,XB(I)::QAR(K)
- R(b);OGATE::P(B),XR(b)
- Refutation
- P(g);XP(F)
- Try
- S(G);
- Threat
- R1(D)
- Vars
- Q(i);OGATE,XS(E)::QAB(K)
- B(d);OGATE,XR(D)::QAB(K)
- S(h);N_GUARD,XB(I)::QAR(K)
- P(g);OGATEB,XP(F)::QAR(K),XQ(i)
- R(b);OGATE::P(B),XR(b)
- Refutation
- Q(i);XR(J)
- Try
- Q(K);P_PINP(g),XQ(i)
- Threat
- DUALS(2)
- Vars
- B(d);XR(D)::QAR1(K),XP(g)
- S(h);XB(I)::QAR1(K),XP(g)
- Refutation
- R(b);XP(F)
- Try
- Actual
- S(G);
- Threat
- R1(D)
- Vars
- Q(i);OGATE,XS(E)::QAB(K)
- R(b);OGATE,XS(G)::P(B),XR(b)
- B(d);OGATE,XR(D)::QAB(K)
- S(h);N_GUARD,XB(I)::QAR(K)
- P(g);OGATEB,XP(F)::QAR(K),XQ(i)
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).