MESON Chess Problem Database
Problem Display
PID: 55037 (7b/6Qn/PrPnR3/P1kpp3/1NPp4/B2PP3/K1N5/2R5 w - - 0 1)
Navon, Emanuel
2nd Prize, The Problemist, 1990/I
#2
13 + 8
| 721 | Variantim | 1993 |
| 4640 | Chess Wizardry: The New ABC of Chess Problems | 1996 |
SOLUTION
- SOUND
- Sets
- 1...Rxc6
- 2.Sxd5#
- 1...dxc4
- 2.Rxe5#
- 1...e4
- 2.exd4#
- 1...Rxc6
- Tries
- 1.Sxd5+?
- 1...Kxc6
- 2.Rxd6#
- 2.Qc7#
- 1...Rb4!
- 1...Kxc6
- 1.Rxe5?
- threat
- 2.Rxd5#
- 2.exd4#
- 1...Sxc4
- 2.Rxd5#
- 1...dxe3
- 2.Rxd5#
- 1...Se4
- 2.Rxd5#
- 1...Sb5
- 2.Rxd5#
- 1...Sf5
- 2.Rxd5#
- 1...Sb7
- 2.Rxd5#
- 1...Sf7
- 2.Rxd5#
- 1...Sc8
- 2.Rxd5#
- 1...Se8
- 2.Rxd5#
- 1...Sf6
- 2.exd4#
- 1...Rxb4!
- threat
- 1.Qxe5?
- threat
- 2.Qxd6#
- 2.Qxd5#
- 2.exd4#
- 1...Rxb4
- 2.Qxd6#
- 2.Qxd5#
- 1...Rxc6
- 2.Sxd5#
- 2.Qxd5#
- 2.exd4#
- 1...Sxc4
- 2.Qxd5#
- 1...dxe3
- 2.Qxd6#
- 2.Qxd5#
- 1...Se4
- 2.Qxd5#
- 2.exd4#
- 1...Sb5
- 2.Qxd5#
- 1...Sf5
- 2.Qxd5#
- 1...Sb7
- 2.Qxd5#
- 2.exd4#
- 1...Sf7
- 2.Qxd5#
- 2.exd4#
- 1...Sc8
- 2.Qxd5#
- 2.exd4#
- 1...Se8
- 2.Qxd5#
- 2.exd4#
- 1...Sf6
- 2.Qxd4#
- 2.Qxd6#
- 2.exd4#
- 1...Bxe5!
- threat
- 1.Qa7?
- threat
- 2.Qxb6#
- 1...Sc8
- 2.Sxd5#
- 1...Sxc4!
- threat
- 1.Qd7?
- threat
- 2.Qxd6#
- 1...Rxc6
- 2.Sxd5#
- 2.Sxc6#
- 2.Qxc6#
- 1...Sxc4
- 2.Qxd5#
- 1...Se4
- 2.Qxd5#
- 1...Sb5
- 2.Qxd5#
- 1...Sf5
- 2.Qxd5#
- 1...Sb7
- 2.Qxd5#
- 1...Sf7
- 2.Qxd5#
- 1...Sc8
- 2.Qxd5#
- 1...Se8
- 2.Qxd5#
- 1...dxc4!
- threat
- 1.Qe7?
- threat
- 2.Qxd6#
- 1...Rxc6
- 2.Sxd5#
- 1...dxc4!
- threat
- 1.Sxd5+?
- Keys
- 1.Sxd4!
- threat
- 2.Sb3#
- 1...Rxb4
- 2.Qa7#
- 1...Sxc4
- 2.Qe7#
- 1...dxc4
- 2.Rxe5#
- 1...exd4
- 2.exd4#
- threat
- 1.Sxd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- R(e);N_GUARD,SBLOCK,XP(K)::B(D)+S(G),XP(c)
- P(c);OGATEB,XP(H)::R(L),XP(d)
- P(d);N_GUARD::P(F),XP(a)
- Tries
- Try
- S(G);CHECK,XP(c)
- Refutation
- R(e);P_SPINR(e)
- Try
- R(L);P_PINP(c),XP(d)
- Threat
- DUALS(2)
- Vars
- S(f);XP(H)::R1(L),XP(c)
- P(a);XP(F)::R1(L),XP(c)
- S(f);::R1(L),XP(c)
- S(g);::P(F),XP(a)
- Refutation
- R(e);P_SPINR(e),XS(G)
- Try
- Q(M);P_PINP(c),XP(d)
- Threat
- DUALS(3)
- Vars
- S(f);XP(H)::QAR1(M),XP(c)
- S(f);::QAR1(M),XP(c)
- Refutation
- B(h);N_SPINP(c),XQ(M)
- Try
- Q(M);P_PINR(e)
- Threat
- QAB1(M),XR(e)
- Vars
- S(f);::B(D)+S(G),XP(c)
- Refutation
- S(f);XP(H)
- Try
- Q(M);
- Threat
- QAB1(M),XS(f)
- Vars
- S(f);OGATE,XP(H)::QAR1(M),XP(c)
- S(f);OGATE::QAR1(M),XP(c)
- Refutation
- P(c);XP(H)
- Try
- Q(M);P_PINS(f)
- Threat
- QAB1(M),XS(f)
- Vars
- R(e);N_GUARD,SBLOCK,XP(K)::B(D)+S(G),XP(c)
- Refutation
- P(c);XP(H)
- Try
- Actual
- S(C);XP(a)
- Threat
- S(C)
- Vars
- R(e);OGATEB,P_SPINR(e),XS(G)::QAB(M)
- S(f);OGATEB,P_SPINS(f),XP(H)::QAB(M)
- P(c);OGATEB,P_SPINP(c),XP(H)::R(L),XP(d)
- P(d);OGATE,XS(C)::P(F),XP(d)
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