MESON Chess Problem Database
Problem Display
PID: 166535 (1b1B4/pBn5/3P3R/K2Nk1pp/pQ3pP1/2pP1pn1/2r5/8 w - - 0 1)
Labai, Zoltan
1/2 Prize, Israel Ring Ty., 2012
#2
9 + 12
| 230 | Sachove umeni (Ceskoslovensky sach) | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Qxc3#
- 1...Rb2
- 2.Qxc3#
- 1...Rd2
- 2.Qxc3#
- 1...Re2
- 2.Qxc3#
- 1...Rf2
- 2.Qxc3#
- 1...Rg2
- 2.Qxc3#
- 1...Rh2
- 2.Qxc3#
- 1...Sf1
- 2.Qe4#
- 1...Sh1
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 2.d4#
- 1...Sf5
- 2.Qe4#
- 1...Se6
- 2.Bf6#
- 1...Ra2
- Tries
- 1.Sxf4?
- threat
- 2.Bf6#
- 1...gxf4
- 2.d4#
- 1...Se4
- 2.Qxe4#
- 1...Sd5
- 2.Re6#
- 1...Se8
- 2.Re6#
- 1...hxg4!
- threat
- 1.Sxc7?
- threat
- 2.Bf6#
- 2.Re6#
- 2.Qc5#
- 2.d4#
- 1...hxg4
- 2.Qc5#
- 1...Rd2
- 2.Bf6#
- 2.Re6#
- 2.Qxc3#
- 2.Qc5#
- 1...Se2
- 2.Bf6#
- 2.Re6#
- 2.Qc5#
- 2.Qe4#
- 1...Se4
- 2.Re6#
- 2.Qxe4#
- 2.d4#
- 1...Sf5
- 2.Bf6#
- 2.Re6#
- 2.Qc5#
- 2.Qe4#
- 1...Bxc7+!
- threat
- 1.Bxg5?
- threat
- 2.Bxf4#
- 2.Qxf4#
- 1...hxg4
- 2.Qxf4#
- 1...Se2
- 2.Qe4#
- 1...Se4
- 2.Bxf4#
- 2.Qxe4#
- 2.d4#
- 1...Se6
- 2.Bf6#
- 1...Sxd5!
- threat
- 1.Re6+?
- 1...Sxe6
- 2.Bf6#
- 1...Kxe6!
- 1...Sxe6
- 1.Qc5?
- threat
- 2.Sxc7#
- 1...Sxd5
- 2.Qxd5#
- 1...Se4
- 2.d4#
- 1...Sb5
- 2.Sxc3#
- 2.Se3#
- 2.Sb4#
- 2.Sb6#
- 2.Sc7#
- 2.Se7#
- 1...Se6
- 2.Bf6#
- 1...Sa8
- 2.Sxc3#
- 2.Se3#
- 2.Sb4#
- 2.Sb6#
- 2.Sc7#
- 2.Se7#
- 1...Se8
- 2.Sxc3#
- 2.Se3#
- 2.Sb4#
- 2.Sb6#
- 2.Sc7#
- 2.Se7#
- 1...Sa6!
- threat
- 1.dxc7?
- threat
- 2.cxb8Q#
- 2.cxb8B#
- 1...Bxc7+
- 2.Bxc7#
- 1...Rc1
- 2.cxb8Q#
- 2.cxb8B#
- 1...Ra2
- 2.Qxc3#
- 2.cxb8Q#
- 2.cxb8B#
- 1...Rb2
- 2.Qxc3#
- 2.cxb8Q#
- 2.cxb8B#
- 1...Rd2
- 2.Qxc3#
- 2.cxb8Q#
- 2.cxb8B#
- 1...Re2
- 2.Qxc3#
- 2.cxb8Q#
- 2.cxb8B#
- 1...Rf2
- 2.Qxc3#
- 2.cxb8Q#
- 2.cxb8B#
- 1...Rg2
- 2.Qxc3#
- 2.cxb8Q#
- 2.cxb8B#
- 1...Rh2
- 2.Qxc3#
- 2.cxb8Q#
- 2.cxb8B#
- 1...Sf1
- 2.Qe4#
- 2.cxb8Q#
- 2.cxb8B#
- 1...Sh1
- 2.Qe4#
- 2.cxb8Q#
- 2.cxb8B#
- 1...Se2
- 2.Qe4#
- 2.cxb8Q#
- 2.cxb8B#
- 1...Se4
- 2.Qxe4#
- 2.d4#
- 1...Sf5
- 2.Qe4#
- 1...f2
- 2.cxb8Q#
- 2.cxb8B#
- 1...a3
- 2.cxb8Q#
- 2.cxb8B#
- 1...h4
- 2.cxb8Q#
- 2.cxb8B#
- 1...a6
- 2.cxb8Q#
- 2.cxb8B#
- 1...hxg4!
- threat
- 1.Sxf4?
- Keys
- 1.Se7!
- threat
- 2.d4#
- 1...Rd2
- 2.Qxc3#
- 1...Se2
- 2.Qe4#
- 1...Sf5
- 2.Qe4#
- 1...Sb5
- 2.Qc5#
- 1...Sd5
- 2.Sc6#
- 1...Se6
- 2.Sg6#
- threat
- 1.Se7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- R(a);N_GUARD::QAB(B),XP(b)
- S(d);N_GUARD::QAR1(B)
- S(k);SBLOCK::B(I)
- Tries
- Try
- S(E);XP(f)
- Threat
- B(I)
- Vars
- P(h);SBLOCK,XS(E)::P(A)
- S(d);N_GUARD::QAR1(B),XS(d)
- S(k);N_GUARD::R1(G)
- Refutation
- P(i);XP(C)
- Try
- S(E);XS(k)
- Threat
- DUALS(4)
- Vars
- P(i);XP(C)::QAR2(B)
- Refutation
- B(l);CHECK,XS(E)
- Try
- B(I);XP(h)
- Threat
- DUALS(2)
- Vars
- P(i);XP(C)::QAB1(B),XP(f)
- S(d);N_GUARD::QAR1(B)
- S(k);SBLOCK::B(I)
- Refutation
- S(k);XS(E)
- Try
- R(G);CHECK
- Vars
- S(k);SBLOCK,XR(G)::B(I)
- Refutation
- K(g);P-FLIGHT,XR(G)
- Try
- Q(B);
- Threat
- QAR(B)+S(E),XS(k)
- Vars
- S(k);OGATE,P_SPINS(k),XS(E)::QAR1(B),XS(k)
- S(d);SBLOCK::P(A)
- S(k);SBLOCK::B(I)
- Refutation
- S(k);
- Try
- P(F);XS(k)
- Threat
- PXB(l)=Q
- Vars
- B(l);CHECK,OGATE,XP(F)::B(I),XB(l)
- R(a);::PXB(l)=Q
- S(d);N_GUARD::QAR1(B)
- P(c);::PXB(l)=Q
- P(e);::PXB(l)=Q
- P(i);::PXB(l)=Q
- P(j);::PXB(l)=Q
- Refutation
- P(i);XP(C)
- Try
- Actual
- S(E);
- Threat
- P(A)
- Vars
- R(a);N_GUARD::QAB(B),XP(b)
- S(d);N_GUARD::QAR1(B)
- S(k);N_GUARD::QAR2(B)
- S(k);SBLOCK::S(E)
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).