MESON Chess Problem Database
Problem Display
PID: 237443 (1B6/nPKP1R1b/1PpNN1p1/1p2k3/7R/1B4p1/4rr1b/1n4Q1 w - - 0 1)
Labai, Zoltan
Pravda, 2004
#2
11 + 11
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra2
- 2.Re4#
- 1...Rb2
- 2.Re4#
- 1...Rc2
- 2.Re4#
- 1...Rd2
- 2.Re4#
- 1...Re4
- 2.Rxe4#
- 1...Rf1
- 2.Qd4#
- 2.Qc5#
- 1...Rg2
- 2.Qd4#
- 2.Qc5#
- 1...Rf3
- 2.Qd4#
- 2.Qc5#
- 1...Rf4
- 2.Qc5#
- 1...Rf5
- 2.Qd4#
- 2.Qc5#
- 1...Rf6
- 2.Qd4#
- 2.Qc5#
- 1...Rxf7
- 2.Qd4#
- 1...Sd2
- 2.Qa1#
- 1...Ra2
- Tries
- 1.Se4?
- threat
- 2.Kd8#
- 1...Rxf7
- 2.Qc5#
- 1...Rf4
- 2.Qd4#
- 1...Rf6
- 2.Qc5#
- 1...Sc8
- 2.Kxc8#
- 1...Rd2!
- threat
- 1.Rf3?
- threat
- 2.Sf7#
- 1...Rxf3
- 2.Qd4#
- 1...Bg8!
- threat
- 1.Rf5+?
- 1...Rxf5
- 2.Qd4#
- 1...gxf5!
- 1...Rxf5
- 1.Qxf2?
- threat
- 2.Qd4#
- 2.Qc5#
- 2.Qxe2#
- 2.Qf4#
- 2.Qf6#
- 1...Rxf2
- 2.Re4#
- 1...Re1
- 2.Qxe1#
- 2.Qd4#
- 2.Qc5#
- 2.Qf4#
- 2.Qf6#
- 1...Ra2
- 2.Re4#
- 2.Qe3#
- 2.Qd4#
- 2.Qc5#
- 2.Qf4#
- 2.Qf6#
- 1...Rb2
- 2.Re4#
- 2.Qe3#
- 2.Qd4#
- 2.Qc5#
- 2.Qf4#
- 2.Qf6#
- 1...Rc2
- 2.Re4#
- 2.Qe3#
- 2.Qd4#
- 2.Qf4#
- 2.Qf6#
- 1...Rd2
- 2.Re4#
- 2.Qe3#
- 2.Qf4#
- 2.Qf6#
- 1...Re3
- 2.Qxe3#
- 2.Qf4#
- 2.Qf6#
- 1...Re4
- 2.Rxe4#
- 2.Qc5#
- 2.Qf6#
- 1...Bg1
- 2.Qxg3#
- 2.Qf4#
- 2.Qf6#
- 1...Sd2
- 2.Qd4#
- 2.Qc5#
- 2.Qf4#
- 2.Qf6#
- 1...Sc3
- 2.Qd4#
- 2.Qf4#
- 2.Qf6#
- 1...g2
- 2.Qd4#
- 2.Qc5#
- 2.Qxe2#
- 2.Qf6#
- 1...c5
- 2.Qxc5#
- 2.Qxe2#
- 2.Qf4#
- 2.Qf6#
- 1...g5
- 2.Qd4#
- 2.Qc5#
- 2.Qf6#
- 1...gxf2!
- threat
- 1.Qc1?
- threat
- 2.Qc5#
- 1...Rc2
- 2.Re4#
- 2.Qe3#
- 1...Rd2
- 2.Re4#
- 1...Sc3
- 2.Qxc3#
- 1...c5
- 2.Qxc5#
- 1...Rxf7!
- threat
- 1.Qd1?
- threat
- 2.Qd4#
- 1...Rd2
- 2.Re4#
- 1...Re4
- 2.Rxe4#
- 1...Sd2
- 2.Qa1#
- 1...c5
- 2.Qd5#
- 1...Rf4!
- threat
- 1.Se4?
- Keys
- 1.Kd8!
- threat
- 2.Se4#
- 2.Sxb5#
- 2.Sf5#
- 2.Sc8#
- 2.Se8#
- 1...Rxf7
- 2.Qd4#
- 1...Rd2
- 2.Re4#
- 1...Re4
- 2.Sxe4#
- 2.Sxb5#
- 2.Sf5#
- 2.Sc8#
- 2.Se8#
- 2.Rxe4#
- 1...Rf4
- 2.Qc5#
- 1...Rf5
- 2.Se4#
- 2.Sxb5#
- 2.Sxf5#
- 2.Sc8#
- 2.Se8#
- 2.Qd4#
- 2.Qc5#
- 1...Rf6
- 2.Qd4#
- 2.Qc5#
- 1...Sc8
- 2.Sxc8#
- 1...b4
- 2.Se4#
- 2.Sb5#
- 2.Sf5#
- 2.Sc8#
- 2.Se8#
- threat
- 1.Kd8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- R(b);N_GUARD::R1(C)
- R(b);N_GUARD::R1(C),XR(b)
- R(c);OGATE::QAR2(A)
- R(c);OGATE,P_PINP(I),XR(J)::QAB1(A)
- S(a);OGATE::QAB(A)
- Tries
- Try
- S(E);
- Threat
- B(K)+K(H)
- Vars
- R(c);OGATE,P_PINP(I),XR(J)::QAR2(A)
- R(c);OGATE::QAB1(A)
- R(c);OGATE::QAR2(A)
- S(j);::B(K)+K(H),XS(j)
- Refutation
- R(b);
- Try
- R(J);
- Threat
- S(E)
- Vars
- R(c);OGATE,XR(J)::QAB1(A)
- Refutation
- B(k);
- Try
- R(J);CHECK
- Vars
- R(c);OGATE,XR(J)::QAB1(A)
- Refutation
- P(i);XR(J)
- Try
- Q(A);XR(c)
- Threat
- DUALS(5)
- Vars
- R(b);N_GUARD,XQ(A)::R1(C)
- Refutation
- P(e);XQ(A)
- Try
- Q(A);
- Threat
- QAR2(A)
- Vars
- R(b);N_GUARD::R1(C)
- S(a);N_GUARD::QAB(A),XS(a)
- P(h);::QAR2(A),XP(h)
- Refutation
- R(c);P_PINP(I),XR(J)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- R(b);N_GUARD::R1(C)
- R(b);N_GUARD::R1(C),XR(b)
- S(a);OGATE::QAB(A)
- P(h);N_GUARD::QAR1(A)
- Refutation
- R(c);
- Try
- Actual
- K(H);S_FLIGHT
- Threat
- DUALS(5)
- Vars
- R(c);OGATE,XR(J)::QAB1(A)
- R(b);N_GUARD::R1(C)
- R(c);OGATE::QAR2(A)
- S(j);::B(K)+S(E),XS(j)
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).