MESON Chess Problem Database
Problem Display
PID: 182741 (3R4/5P2/p2NrpK1/Rp1pkpp1/2P1PN2/3B3b/3P3B/3Q4 w - - 0 1)
Ouellet, Charles
Boletim da UBP, 1990
#2
12 + 9
SOLUTION
- SOUND
- Sets
- 1...bxc4
- 2.Rxd5#
- 1...b4
- 2.Rxd5#
- 2.Qa1#
- 1...dxc4
- 2.Sxc4#
- 1...dxe4
- 2.Qa1#
- 1...fxe4
- 2.Se2#
- 1...bxc4
- Tries
- 1.Sxd5+?
- 1...f4
- 2.Qa1#
- 1...Kd4!
- 1...f4
- 1.Sxb5?
- threat
- 2.Rxd5#
- 1...dxc4
- 2.Sa3#
- 2.Sc3#
- 2.Sd4#
- 2.Sa7#
- 2.Sc7#
- 2.Rd5#
- 1...dxe4
- 2.Sa3#
- 2.Sc3#
- 2.Sd4#
- 2.Sa7#
- 2.Sc7#
- 2.Rd5#
- 2.Qa1#
- 1...d4
- 2.Sa3#
- 2.Sc3#
- 2.Sxd4#
- 2.Sd6#
- 2.Sa7#
- 2.Sc7#
- 2.Rd5#
- 1...Rd6!
- threat
- 1.Sb7?
- threat
- 2.Rxd5#
- 1...Kd4
- 2.Rxd5#
- 2.Qa1#
- 1...dxc4
- 2.Rd5#
- 1...dxe4
- 2.Rd5#
- 2.Qa1#
- 1...d4
- 2.Rd5#
- 1...Rd6!
- threat
- 1.Sc8?
- threat
- 2.Rxd5#
- 1...Kd4
- 2.Rxd5#
- 1...dxc4
- 2.Rd5#
- 1...dxe4
- 2.Rd5#
- 2.Qa1#
- 1...d4
- 2.Rd5#
- 1...Rd6!
- threat
- 1.Se8?
- threat
- 2.Rxd5#
- 1...Kd4
- 2.Rxd5#
- 1...dxc4
- 2.Rd5#
- 1...dxe4
- 2.Rd5#
- 2.Qa1#
- 1...d4
- 2.Rd5#
- 1...Rd6!
- threat
- 1.Bb1?
- threat
- 2.d4#
- 1...Kd4
- 2.Sxe6#
- 1...bxc4
- 2.Rxd5#
- 1...dxc4
- 2.Sxc4#
- 1...fxe4
- 2.Se2#
- 1...d4
- 2.Sd3#
- 1...dxe4!
- threat
- 1.Rxb5?
- threat
- 2.Rxd5#
- 2.Qa1#
- 1...Kd4
- 2.Rxd5#
- 2.Qa1#
- 1...Rxd6
- 2.Qa1#
- 1...axb5!
- threat
- 1.Sxd5+?
- Keys
- 1.Bc2!
- threat
- 2.d4#
- 1...Kd4
- 2.Sxe6#
- 1...bxc4
- 2.Rxd5#
- 1...dxc4
- 2.Sxc4#
- 1...dxe4
- 2.Qa1#
- 1...fxe4
- 2.Se2#
- 1...d4
- 2.Sd3#
- threat
- 1.Bc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- P(b);OGATE,P_SPINP(c),XP(E)::R1(H),XP(c)
- P(c);P_SPINP(b),XP(E)::S(I),XP(c)
- P(c);N_GUARD,P_SPINP(b),XP(F)::QAB(A)
- P(e);N_GUARD,XP(F)::B(C)+S(G)
- Tries
- Try
- S(G);CHECK,XP(c)
- Vars
- P(e);P_SPINP(e)::QAB(A)
- Refutation
- K(d);S_FLIGHT
- Try
- S(I);XP(b)
- Threat
- R1(L),XP(c)
- Refutation
- R(h);
- Try
- S(I);
- Threat
- R1(L),XP(c)
- Vars
- P(c);P_SPINP(b),XP(E)::R1(L)
- P(c);P_SPINP(b)::R1(L)
- Refutation
- R(h);
- Try
- S(I);
- Threat
- R1(L),XP(c)
- Vars
- K(d);P_SPINP(c),S_FLIGHT::R1(L),XP(c)
- P(c);P_SPINP(b),XP(E)::R1(L)
- P(c);P_SPINP(b)::R1(L)
- Refutation
- R(h);
- Try
- S(I);
- Threat
- R1(L),XP(c)
- Vars
- K(d);P_SPINP(c),S_FLIGHT::R1(L),XP(c)
- P(c);P_SPINP(b),XP(E)::R1(L)
- P(c);P_SPINP(b)::R1(L)
- Refutation
- R(h);
- Try
- B(D);
- Threat
- P(B)
- Vars
- K(d);S_FLIGHT::S(G),XR(h)
- P(b);OGATE,P_SPINP(c),XP(E)::R1(H),XP(c)
- P(c);P_SPINP(b),XP(E)::S(I),XP(c)
- P(e);N_GUARD,XP(F)::B(C)+S(G)
- P(c);P_SPINP(b),SBLOCK::B(C)+S(G),DCHECK
- Refutation
- P(c);P_SPINP(b),XP(F)
- Try
- R(H);P_PINP(c),XP(b)
- Threat
- DUALS(2)
- Vars
- R(h);XS(I)::QAB(A)
- Refutation
- P(g);N_SPINP(c),XR(H)
- Try
- Actual
- B(D);
- Threat
- P(B)
- Vars
- K(d);S_FLIGHT::S(G),XR(h)
- P(b);OGATE,P_SPINP(c),XP(E)::R1(H),XP(c)
- P(c);P_SPINP(b),XP(E)::S(I),XP(c)
- P(c);N_GUARD,P_SPINP(b),XP(F)::QAB(A)
- P(e);N_GUARD,XP(F)::B(C)+S(G)
- P(c);P_SPINP(b),SBLOCK::B(C)+S(G),DCHECK
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