MESON Chess Problem Database
Problem Display
PID: 15518 (8/2N1p1BK/2p1NrB1/2P2Pp1/4k2p/7P/2PP2PQ/8 w - - 0 1)
Retter, Yosef
Al Hamishmar, 1985
#2
12 + 6
| 721 | Variantim | 1990 |
| 3748 | FIDE Album (1983-1985) | 1992 |
SOLUTION
- SOUND
- Sets
- 1...Rxf5
- 2.Sxg5#
- 2.Qe5#
- 1...Rxe6
- 2.fxe6#
- 1...Rxg6
- 2.Qe5#
- 1...Rf7
- 2.Sxg5#
- 2.Qe5#
- 2.f6#
- 1...Rf8
- 2.Sxg5#
- 2.Qe5#
- 2.f6#
- 1...g4
- 2.Qf4#
- 1...Rxf5
- Tries
- 1.Kh6?
- 1...Rxf5
- 2.Sxg5#
- 2.Qe5#
- 1...Rxe6
- 2.fxe6#
- 1...Rf7
- 2.Sxg5#
- 2.Qe5#
- 2.f6#
- 1...Rf8
- 2.Sxg5#
- 2.Qe5#
- 2.f6#
- 1...g4
- 2.Qf4#
- 1...Rxg6+!
- 1...Rxf5
- 1.Kg8?
- 1...Rxf5
- 2.Sxg5#
- 2.Qe5#
- 1...Rxe6
- 2.fxe6#
- 1...Rxg6
- 2.Qe5#
- 1...Rf7
- 2.Sxg5#
- 2.Qe5#
- 2.f6#
- 1...g4
- 2.Qf4#
- 1...Rf8+!
- 1...Rxf5
- 1.Kh8?
- 1...Rxf5
- 2.Sxg5#
- 2.Qe5#
- 1...Rxe6
- 2.fxe6#
- 1...Rxg6
- 2.Qe5#
- 1...Rf7
- 2.Sxg5#
- 2.Qe5#
- 2.f6#
- 1...g4
- 2.Qf4#
- 1...Rf8+!
- 1...Rxf5
- 1.Bxf6?
- threat
- 2.Sxg5#
- 2.Qe5#
- 1...g4
- 2.Sg5#
- 2.Qf4#
- 2.Qe5#
- 1...exf6!
- threat
- 1.Bh8?
- 1...Rxf5
- 2.Sxg5#
- 2.Qe5#
- 1...Rxe6
- 2.fxe6#
- 1...Rxg6
- 2.Qe5#
- 1...g4
- 2.Qf4#
- 1...Rf8
- 2.Sxg5#
- 2.Qe5#
- 2.f6#
- 1...Rf7+!
- 1...Rxf5
- 1.Qg1?
- threat
- 2.Qe3#
- 2.Qd4#
- 2.Qe1#
- 1...Ke5
- 2.Qe3#
- 2.Qd4#
- 2.Qe1#
- 1...Rxe6
- 2.Qe3#
- 2.Qd4#
- 1...Rxg6!
- threat
- 1.Qg3?
- threat
- 2.Qe1#
- 2.Qe3#
- 2.d3#
- 1...Rxe6
- 2.Qe3#
- 2.Qf3#
- 2.Qg4#
- 2.d3#
- 2.fxe6#
- 1...Rxg6
- 2.Qe5#
- 2.Qd3#
- 2.Qf3#
- 2.Qg4#
- 1...hxg3!
- threat
- 1.Qd6?
- threat
- 2.Sxg5#
- 2.Qd4#
- 1...Rxe6
- 2.Qd4#
- 2.fxe6#
- 2.f6#
- 1...Rxg6
- 2.Qe5#
- 2.Qd3#
- 1...g4
- 2.Sg5#
- 2.Qf4#
- 2.Qd4#
- 1...exd6!
- threat
- 1.g3?
- threat
- 2.Qe2#
- 1...Kf3
- 2.Sxg5#
- 1...Ke5
- 2.Qe2#
- 1...Rxg6!
- threat
- 1.g4?
- threat
- 2.Qe2#
- 1...Kf3
- 2.Sxg5#
- 1...Rxe6!
- threat
- 1.Kh6?
- Keys
- 1.Qh1!
- threat
- 2.Qe1#
- 1...Ke5
- 2.Qe1#
- 1...Rxe6
- 2.g3#
- 1...Rxg6
- 2.g4#
- threat
- 1.Qh1!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- R(e);OGATE,XS(H)::B(I)+P(G),XR(e)
- R(e);XB(I)::QAR1(D)
- P(c);N_GUARD::QAR1(D)
- Tries
- Try
- K(L);P-FLIGHT,P_SPINB(I)
- Vars
- R(e);OGATE,XS(H)::B(I)+P(G),XR(e)
- P(c);N_GUARD::QAR1(D)
- Refutation
- R(e);CHECK,XB(I)
- Try
- K(L);S_FLIGHT
- Vars
- R(e);OGATE,XS(H)::B(I)+P(G),XR(e)
- R(e);P_PINB(K),XB(I)::QAR1(D)
- P(c);N_GUARD::QAR1(D)
- Refutation
- R(e);CHECK
- Try
- K(L);P-FLIGHT
- Vars
- R(e);OGATE,XS(H)::B(I)+P(G),XR(e)
- R(e);XB(I)::QAR1(D)
- P(c);N_GUARD::QAR1(D)
- Refutation
- R(e);CHECK
- Try
- B(K);XR(e)
- Threat
- DUALS(2)
- Refutation
- P(f);XB(K)
- Try
- B(K);
- Vars
- R(e);OGATE,XS(H)::B(I)+P(G),XR(e)
- R(e);XB(I)::QAR1(D)
- P(c);N_GUARD::QAR1(D)
- Refutation
- R(e);CHECK
- Try
- Q(D);
- Threat
- DUALS(3)
- Refutation
- R(e);XB(I)
- Try
- Q(D);
- Threat
- DUALS(3)
- Refutation
- P(b);XQ(D)
- Try
- Q(D);
- Threat
- DUALS(2)
- Refutation
- P(f);XQ(D)
- Try
- P(C);
- Threat
- QAR2(D)
- Vars
- K(a);S_FLIGHT::S(H),XP(c)
- K(a);P-FLIGHT,P_SPINR(e)::QAR(D)
- Refutation
- R(e);XB(I)
- Try
- P(C);
- Threat
- QAR2(D)
- Vars
- K(a);S_FLIGHT::S(H),XP(c)
- Refutation
- R(e);XS(H)
- Try
- Actual
- Q(D);
- Threat
- QAR(D)
- Vars
- K(a);P-FLIGHT,P_SPINR(e)::QAR(D)
- R(e);XS(H)::QAB(D)+P(C)
- R(e);XB(I)::QAB(D)+P(C)
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).