MESON Chess Problem Database
Problem Display
PID: 42837 (8/p2KP3/5bN1/2pkB2n/1P1Pr3/1Pp2RP1/r1N2PB1/3n4 w - - 0 1)
Kiss, Janos
1st Prize, Hungarian Chess Federation, 1974
#2
12 + 9
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Re3#
- 1...Re2
- 2.Re3#
- 1...Re3
- 2.Rxe3#
- 1...Rxd4
- 2.Rd3#
- 1...Rf4
- 2.Rxf4#
- 1...Rg4
- 2.Rf4#
- 1...Rh4
- 2.Rf4#
- 1...Rxe5
- 2.Rf5#
- 1...Bxe7
- 2.Sxe7#
- 1...cxb4
- 2.Sxb4#
- 1...Re1
- Tries
- 1.Se3+?
- 1...Rxe3
- 2.Rxe3#
- 1...Sxe3!
- 1...Rxe3
- 1.Sf4+?
- 1...Rxf4
- 2.Rxf4#
- 1...Sxf4!
- 1...Rxf4
- 1.Rd3?
- threat
- 2.dxc5#
- 1...Bxe5
- 2.dxe5#
- 1...Sxf2
- 2.Se3#
- 1...cxb4
- 2.Sxb4#
- 1...cxd4
- 2.Rxd4#
- 1...Sb2
- 2.Se3#
- 1...Sf4
- 2.Sxf4#
- 1...c4!
- threat
- 1.Re3?
- threat
- 2.Bxe4#
- 1...Sxe3
- 2.Sxe3#
- 1...Sxg3
- 2.Sf4#
- 1...Sxf2!
- threat
- 1.Rf4?
- threat
- 2.Bxe4#
- 1...Sxf2
- 2.Se3#
- 1...Sxf4
- 2.Sxf4#
- 1...Sxg3!
- threat
- 1.e8Q?
- threat
- 2.Qf7#
- 2.Qe6#
- 2.Qa8#
- 2.Qg8#
- 1...Rxd4
- 2.Rd3#
- 2.Qa8#
- 1...Rxe5
- 2.Rf5#
- 2.Qa8#
- 1...Re1
- 2.Re3#
- 2.Qa8#
- 1...Re2
- 2.Re3#
- 2.Qa8#
- 1...Re3
- 2.Rxe3#
- 2.Qa8#
- 1...Rf4
- 2.Rxf4#
- 2.Qa8#
- 1...Rg4
- 2.Rf4#
- 2.Qa8#
- 1...Rh4
- 2.Rf4#
- 2.Qa8#
- 1...Be7
- 2.Sxe7#
- 2.Qf7#
- 2.Qa8#
- 2.Qg8#
- 1...Bd8
- 2.Qf7#
- 2.Qe6#
- 2.Qg8#
- 1...Sf4
- 2.Qa8#
- 1...Sg7
- 2.Qa8#
- 1...Ra6!
- threat
- 1.e8S?
- threat
- 2.Sc7#
- 1...Rxd4
- 2.Rd3#
- 1...Rxe5
- 2.Rf5#
- 1...Bxe5
- 2.Se7#
- 1...Re1
- 2.Re3#
- 1...Re2
- 2.Re3#
- 1...Re3
- 2.Rxe3#
- 1...Rf4
- 2.Rxf4#
- 1...Rg4
- 2.Rf4#
- 1...Rh4
- 2.Rf4#
- 1...Bd8!
- threat
- 1.Se3+?
- Keys
- 1.Rf5!
- threat
- 2.Bxf6#
- 1...Bxe5
- 2.Rxe5#
- 1...Bxe7
- 2.Sxe7#
- 2.Bf4#
- 2.Bd6#
- 2.Bf6#
- 2.Bc7#
- 2.Bg7#
- 2.Bb8#
- 2.Bh8#
- 1...Sxg3
- 2.Sf4#
- 1...Bh4
- 2.Bf4#
- 2.Bd6#
- 2.Bf6#
- 2.Bc7#
- 2.Bg7#
- 2.Bb8#
- 2.Bh8#
- 1...Bg5
- 2.Bf4#
- 2.Bd6#
- 2.Bf6#
- 2.Bc7#
- 2.Bg7#
- 2.Bb8#
- 2.Bh8#
- 1...Bg7
- 2.Bf6#
- 2.Bxg7#
- 1...Bh8
- 2.Bf6#
- 2.Bg7#
- 2.Bxh8#
- 1...Se3
- 2.Sxe3#
- 1...Sg7
- 2.Sf4#
- threat
- 1.Rf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 10
- Sets
- R(d);OGATEB::B(C)+R(E)
- R(d);OGATEB::B(C)+R(E),XR(d)
- R(d);OGATEB,XP(H)::B(C)+R(E)
- R(d);OGATEB,XB(I)::B(C)+R(E)
- B(h);XP(L)::S(J),XB(h)
- P(e);XP(G)::S(A),XP(e)
- Tries
- Try
- S(A);CHECK
- Vars
- R(d);OGATE,XS(A)::B(C)+R(E),XR(d)
- Refutation
- S(a);XS(A)
- Try
- S(J);CHECK
- Vars
- R(d);OGATE,XS(J)::B(C)+R(E),XR(d)
- Refutation
- S(g);XS(J)
- Try
- R(E);P_PINR(d)
- Threat
- R(E)+P(H),XP(e)
- Vars
- B(h);OGATE,XB(I)::R(E)+P(H),XB(h)
- S(a);N_GUARD,XP(B)::S(A)
- P(e);XP(G)::S(A),XP(e)
- P(e);OGATE,P_SPINP(e),XP(H)::R1(E),XP(e)
- S(a);N_GUARD::S(A)
- S(g);N_GUARD::S(J),XS(g)
- Refutation
- P(e);
- Try
- R(E);P_PINR(d)
- Threat
- B(C),XR(d)
- Vars
- S(a);XR(E)::S(A),XS(a)
- S(g);N_GUARD,XP(F)::S(J)
- Refutation
- S(a);XP(B)
- Try
- R(E);P_PINR(d)
- Threat
- B(C),XR(d)
- Vars
- S(a);N_GUARD,XP(B)::S(A)
- S(g);XR(E)::S(J),XS(g)
- Refutation
- S(g);XP(F)
- Try
- P(L);
- Threat
- DUALS(4)
- Vars
- S(g);::QAB(L)
- Refutation
- R(b);
- Try
- P(L);
- Threat
- S(L)
- Vars
- R(d);OGATEB,XP(H)::B(C)+R(E)
- R(d);OGATEB,XB(I)::B(C)+R(E)
- B(h);N_GUARD,XB(I)::S(J)
- R(d);OGATEB::B(C)+R(E)
- R(d);OGATEB::B(C)+R(E),XR(d)
- Refutation
- B(h);
- Try
- Actual
- R(E);P_PINR(d)
- Threat
- R(E)+B(I),XB(h)
- Vars
- B(h);OGATE,P_SPINB(h),XB(I)::R1(E),XB(h)
- S(g);N_GUARD,XP(F)::S(J)
- S(a);N_GUARD::S(A),XS(a)
- S(g);N_GUARD::S(J)
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