MESON Chess Problem Database

Problem Display
PID: 1059 (3QB2n/1p3p2/1p3Pp1/1PN1p1N1/3nKp2/1P3P2/1P1k4/2R1R3 w - - 0 1)

Ouellet, Charles

The Problemist Supplement, 1999

3QB2n/1p3p2/1p3Pp1/1PN1p1N1/3nKp2/1P3P2/1P1k4/2R1R3

#2

12 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...bxc5
      • 2.Qa5#
  • Tries
    • 1.Sh3?
      • 1...bxc5
        • 2.Qa5#
      • 1...g5!
    • 1.Sh7?
      • 1...bxc5
        • 2.Qa5#
      • 1...g5!
    • 1.Bc6?
      • 1...bxc5
        • 2.Qa5#
      • 1...bxc6!
    • 1.Bxf7?
      • 1...bxc5
        • 2.Qa5#
      • 1...Sxf7!
    • 1.Rc4?
      • 1...bxc5
        • 2.Qa5#
      • 1...Kxe1!
    • 1.Rg1?
      • 1...Ke2
        • 2.Rg2#
      • 1...bxc5!
    • 1.Rh1?
      • 1...Ke2
        • 2.Rh2#
      • 1...bxc5!
  • Keys
    • 1.Bd7!
      • 1...Sxb3
        • 2.Sxb3#
      • 1...Sxf3
        • 2.Sxf3#
      • 1...Sxb5
        • 2.Bxb5#
      • 1...bxc5
        • 2.Qa5#
      • 1...Sc2
        • 2.Rcd1#
      • 1...Se2
        • 2.Red1#
      • 1...Sf5
        • 2.Bxf5#
      • 1...Sc6
        • 2.Bxc6#
      • 1...Se6
        • 2.Bxe6#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • P(e);OGATE,XS(H)::QAB(K)
  • Tries
    • Try
      • S(I);
      • Vars
        • P(e);OGATE,XS(H)::QAB(K)
      • Refutation
        • P(f);
    • Try
      • S(I);
      • Vars
        • P(e);OGATE,XS(H)::QAB(K)
      • Refutation
        • P(f);
    • Try
      • B(L);
      • Vars
        • P(e);OGATE,XS(H)::QAB(K)
      • Refutation
        • P(g);XB(L)
    • Try
      • B(L);XP(h)
      • Vars
        • P(e);OGATE,XS(H)::QAB(K)
      • Refutation
        • S(i);XB(L)
    • Try
      • R(A);
      • Vars
        • P(e);OGATE,XS(H)::QAB(K)
      • Refutation
        • K(a);N_SPINS(b),S_FLIGHT,XR(B)
    • Try
      • R(B);
      • Vars
        • K(a);N_SPINS(b),P-FLIGHT::R(B)
      • Refutation
        • P(e);XS(H)
    • Try
      • R(B);
      • Vars
        • K(a);N_SPINS(b),P-FLIGHT::R(B)
      • Refutation
        • P(e);XS(H)
  • Actual
    • B(L);N_PINS(b)
    • Vars
      • S(b);XP(D)::S(H),XS(b)
      • S(b);XP(E)::S(I),XS(b)
      • S(b);OGATE,XP(G)::QAR(K)+B(L),XS(b)
      • P(e);OGATE,XS(H)::QAB(K)
      • S(b);SBLOCK::R1(A)
      • S(b);SBLOCK::R1(B)
      • S(b);OGATEB::QAR(K)+B(L),XS(b)
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