MESON Chess Problem Database
Problem Display
PID: 45314 (2K4B/2P3N1/p1P1p1Rp/P1n1k1pr/1QP1p1Rp/1np2P1P/2B5/8 w - - 0 1)
Navon, Emanuel
3rd Prize, Israel Ring Ty., 1961
#2
13 + 11
| 3841 | The Art of Israeli Chess Composition | 1983 |
SOLUTION
- SOUND
- Sets
- 1...Kd4
- 2.Sf5#
- 1...Kd6
- 2.Rxe6#
- 1...Sa1
- 2.Qxc5#
- 1...Sc1
- 2.Qxc5#
- 1...Sd2
- 2.Qxc5#
- 1...Sd4
- 2.Qxc5#
- 1...Sxa5
- 2.Qxc5#
- 1...Sd3
- 2.Rxe4#
- 1...Sa4
- 2.Rxe4#
- 1...Sb7
- 2.Rxe4#
- 1...Sd7
- 2.Rxe4#
- 1...exf3
- 2.Sf5#
- 2.Se8#
- 1...e3
- 2.Sf5#
- 2.Se8#
- 1...Kd4
- Tries
- 1.Kb8?
- 1...Kd4
- 2.Sf5#
- 1...Kd6
- 2.Rxe6#
- 1...Sxa5
- 2.Qxc5#
- 1...exf3
- 2.Sf5#
- 2.Se8#
- 1...Sa1
- 2.Qxc5#
- 1...Sc1
- 2.Qxc5#
- 1...Sd2
- 2.Qxc5#
- 1...Sd4
- 2.Qxc5#
- 1...Sd3
- 2.Rxe4#
- 1...Sa4
- 2.Rxe4#
- 1...Sb7
- 2.Rxe4#
- 1...e3
- 2.Sf5#
- 2.Se8#
- 1...Sd7+!
- 1...Kd4
- 1.Kd8?
- 1...Kd4
- 2.Sf5#
- 1...Kd6
- 2.Rxe6#
- 1...Sxa5
- 2.Qxc5#
- 1...exf3
- 2.Sf5#
- 2.Se8#
- 1...Sa1
- 2.Qxc5#
- 1...Sc1
- 2.Qxc5#
- 1...Sd2
- 2.Qxc5#
- 1...Sd4
- 2.Qxc5#
- 1...Sd3
- 2.Rxe4#
- 1...Sa4
- 2.Rxe4#
- 1...Sd7
- 2.Rxe4#
- 1...e3
- 2.Sf5#
- 2.Se8#
- 1...Sb7+!
- 1...Kd4
- 1.Bb1?
- 1...Kd4
- 2.Sf5#
- 1...Kd6
- 2.Rxe6#
- 1...Sxa5
- 2.Qxc5#
- 1...exf3
- 2.Sf5#
- 2.Se8#
- 1...Sa1
- 2.Qxc5#
- 1...Sc1
- 2.Qxc5#
- 1...Sd2
- 2.Qxc5#
- 1...Sd4
- 2.Qxc5#
- 1...Sd3
- 2.Rxe4#
- 1...Sa4
- 2.Rxe4#
- 1...Sb7
- 2.Rxe4#
- 1...Sd7
- 2.Rxe4#
- 1...e3
- 2.Sf5#
- 2.Se8#
- 1...c2!
- 1...Kd4
- 1.Bxb3?
- threat
- 2.Qxc5#
- 1...Kd6
- 2.Rxe6#
- 1...Sxb3
- 2.Rxe4#
- 1...Sd3
- 2.Rxe4#
- 1...Sa4
- 2.Rxe4#
- 1...Sb7
- 2.Rxe4#
- 1...Sd7
- 2.Rxe4#
- 1...Kd4!
- threat
- 1.Bxe4?
- threat
- 2.Sf5#
- 2.Se8#
- 1...Kd4
- 2.Sf5#
- 1...Kd6
- 2.Sf5#
- 2.Rxe6#
- 1...Sxe4
- 2.Rxe4#
- 1...Sd7!
- threat
- 1.Rxe4+?
- 1...Kd6
- 2.Rexe6#
- 2.Rgxe6#
- 1...Sxe4!
- 1...Kd6
- 1.Rxe6+?
- 1...Kd4
- 2.Sf5#
- 1...Sxe6!
- 1...Kd4
- 1.Rxh6?
- 1...Kd4
- 2.Sf5#
- 1...Kd6
- 2.Rxe6#
- 1...Sxa5
- 2.Qxc5#
- 1...exf3
- 2.Sf5#
- 2.Se8#
- 1...Sa1
- 2.Qxc5#
- 1...Sc1
- 2.Qxc5#
- 1...Sd2
- 2.Qxc5#
- 1...Sd4
- 2.Qxc5#
- 1...Sd3
- 2.Rxe4#
- 1...Sa4
- 2.Rxe4#
- 1...Sb7
- 2.Rxe4#
- 1...Sd7
- 2.Rxe4#
- 1...e3
- 2.Sf5#
- 2.Se8#
- 1...Rxh6!
- 1...Kd4
- 1.Qa3?
- 1...Kd6
- 2.Rxe6#
- 1...Sxa5
- 2.Qxc5#
- 1...exf3
- 2.Sf5#
- 2.Se8#
- 1...Sa1
- 2.Qxc5#
- 1...Sc1
- 2.Qxc5#
- 1...Sd2
- 2.Qxc5#
- 1...Sd4
- 2.Qxc5#
- 1...Sd3
- 2.Rxe4#
- 1...Sa4
- 2.Rxe4#
- 1...Sb7
- 2.Rxe4#
- 1...Sd7
- 2.Rxe4#
- 1...e3
- 2.Sf5#
- 2.Se8#
- 1...Kd4!
- 1...Kd6
- 1.Qb5?
- 1...Kd4
- 2.Sf5#
- 1...Kd6
- 2.Sf5#
- 1...Sxa5
- 2.Qxc5#
- 1...exf3
- 2.Sf5#
- 2.Se8#
- 2.Rxe6#
- 1...Sa1
- 2.Qxc5#
- 1...Sc1
- 2.Qxc5#
- 1...Sd2
- 2.Qxc5#
- 1...Sd4
- 2.Qxc5#
- 1...e3
- 2.Sf5#
- 2.Se8#
- 2.Rxe6#
- 1...axb5!
- 1...Kd4
- 1.fxe4?
- threat
- 2.Sf5#
- 2.Se8#
- 1...Kd4
- 2.Sf5#
- 1...Kd6
- 2.Rxe6#
- 1...Sxe4
- 2.Rxe4#
- 1...Sd7!
- threat
- 1.f4+?
- 1...Kd4
- 2.Sf5#
- 1...Kd6
- 2.Rxe6#
- 1...gxf4!
- 1...Kd4
- 1.Kb8?
- Keys
- 1.Qb6!
- 1...Kd4
- 2.Rxe4#
- 1...Kd6
- 2.Sf5#
- 1...Sxa5
- 2.Qxc5#
- 1...exf3
- 2.Sf5#
- 2.Se8#
- 1...Sa1
- 2.Qxc5#
- 1...Sc1
- 2.Qxc5#
- 1...Sd2
- 2.Qxc5#
- 1...Sd4
- 2.Qxc5#
- 1...Sd3
- 2.Rxe6#
- 1...Sa4
- 2.Rxe6#
- 1...Sb7
- 2.Rxe6#
- 1...Sd7
- 2.Rxe6#
- 1...e3
- 2.Sf5#
- 2.Se8#
- 1...Kd4
- 1.Qb6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 6
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(f);P_SPINP(c),S_FLIGHT::B(M)+S(K),DCHECK
- K(f);P_SPINP(j),P_SPINS(e),S_FLIGHT::R1(I),XP(j)
- S(a);N_GUARD::QAR2(D),XS(e)
- S(a);N_GUARD,XP(G)::QAR2(D),XS(e)
- S(e);N_GUARD::R1(F),XP(c)
- Tries
- Try
- K(L);P-FLIGHT
- Vars
- K(f);P_SPINP(c),S_FLIGHT::B(M)+S(K),DCHECK
- K(f);P_SPINP(j),P_SPINS(e),S_FLIGHT::R1(I),XP(j)
- S(a);N_GUARD,XP(G)::QAR2(D),XS(e)
- S(a);N_GUARD::QAR2(D),XS(e)
- S(e);N_GUARD::R1(F),XP(c)
- Refutation
- S(e);CHECK
- Try
- K(L);P-FLIGHT
- Vars
- K(f);P_SPINP(c),S_FLIGHT::B(M)+S(K),DCHECK
- K(f);P_SPINP(j),P_SPINS(e),S_FLIGHT::R1(I),XP(j)
- S(a);N_GUARD,XP(G)::QAR2(D),XS(e)
- S(a);N_GUARD::QAR2(D),XS(e)
- S(e);N_GUARD::R1(F),XP(c)
- Refutation
- S(e);CHECK
- Try
- B(A);
- Vars
- K(f);P_SPINP(c),S_FLIGHT::B(M)+S(K),DCHECK
- K(f);P_SPINP(j),P_SPINS(e),S_FLIGHT::R1(I),XP(j)
- S(a);N_GUARD,XP(G)::QAR2(D),XS(e)
- S(a);N_GUARD::QAR2(D),XS(e)
- S(e);N_GUARD::R1(F),XP(c)
- Refutation
- P(b);
- Try
- B(A);XS(a)
- Threat
- QAR2(D),XS(e)
- Vars
- K(f);P_SPINP(j),P_SPINS(e),S_FLIGHT::R1(I),XP(j)
- S(e);N_GUARD,XB(A)::R1(F),XP(c)
- S(e);N_GUARD::R1(F),XP(c)
- Refutation
- K(f);P_SPINP(c),S_FLIGHT
- Try
- B(A);XP(c)
- Threat
- DUALS(2)
- Vars
- K(f);S_FLIGHT::B(M)+S(K),DCHECK
- S(e);OGATE,XB(A)::R1(F),XS(e)
- Refutation
- S(e);
- Try
- R(F);CHECK,XP(c)
- Refutation
- S(e);XR(F)
- Try
- R(I);CHECK,XP(j)
- Vars
- K(f);P_SPINP(c),S_FLIGHT::B(M)+S(K),DCHECK
- Refutation
- S(e);XR(I)
- Try
- R(I);XP(k)
- Vars
- K(f);P_SPINP(c),S_FLIGHT::B(M)+S(K),DCHECK
- K(f);P_SPINP(j),P_SPINS(e),S_FLIGHT::R1(I),XP(j)
- S(a);N_GUARD,XP(G)::QAR2(D),XS(e)
- S(a);N_GUARD::QAR2(D),XS(e)
- S(e);N_GUARD::R1(F),XP(c)
- Refutation
- R(h);XR(I)
- Try
- Q(D);
- Vars
- K(f);P_SPINP(j),P_SPINS(e),S_FLIGHT::R1(I),XP(j)
- S(a);N_GUARD,XP(G)::QAR2(D),XS(e)
- S(a);N_GUARD::QAR2(D),XS(e)
- S(e);N_GUARD::R1(F),XP(c)
- Refutation
- K(f);P_SPINP(c),S_FLIGHT
- Try
- Q(D);P_PINS(e)
- Vars
- K(f);N_SPINS(e),P_SPINP(c),S_FLIGHT::B(M)+S(K),DCHECK
- K(f);N_SPINS(e),P_SPINP(j),S_FLIGHT::S(K)
- S(a);N_GUARD,XP(G)::QAR2(D),XS(e)
- S(a);N_GUARD::QAR2(D),XS(e)
- Refutation
- P(i);N_SPINS(e),XQ(D)
- Try
- P(B);XP(c)
- Threat
- DUALS(2)
- Vars
- K(f);S_FLIGHT::B(M)+S(K),DCHECK
- K(f);P_SPINP(j),P_SPINS(e),S_FLIGHT::R1(I),XP(j)
- S(e);OGATE,XP(B)::R1(F),XS(e)
- Refutation
- S(e);
- Try
- P(B);CHECK
- Vars
- K(f);S_FLIGHT::B(M)+S(K),DCHECK
- K(f);P_SPINP(j),P_SPINS(e),S_FLIGHT::R1(I),XP(j)
- Refutation
- P(g);XP(B)
- Try
- Actual
- Q(D);
- Vars
- K(f);P_SPINP(c),P_SPINS(e),S_FLIGHT::R1(F),XP(c)
- K(f);P_SPINP(j),S_FLIGHT::S(K)
- S(a);N_GUARD,XP(G)::QAR2(D),XS(e)
- S(a);N_GUARD::QAR2(D),XS(e)
- S(e);N_GUARD::R1(I),XP(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).