MESON Chess Problem Database

Problem Display
PID: 23712 (3B4/8/3p4/Pp3R2/1kN1P2Q/1P1r4/K1RP4/8 w - - 0 1)

Rice, John Michael

BCSC Final, 1996-1997

3B4/8/3p4/Pp3R2/1kN1P2Q/1P1r4/K1RP4/8

#2

10 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.dxc3#
    • 1...bxc4
      • 2.Rxc4#
    • 1...d5
      • 2.Be7#
      • 2.Qe7#
  • Tries
    • 1.Sxd6?
      • threat
        • 2.Rxb5#
      • 1...Rxb3
        • 2.e5#
      • 1...Rd5
        • 2.exd5#
      • 1...Rxd6!
    • 1.Qe1?
      • 1...Rxd2
        • 2.Qxd2#
      • 1...bxc4
        • 2.Rxc4#
      • 1...Rd5
        • 2.d4#
      • 1...d5
        • 2.Be7#
      • 1...Rc3
        • 2.dxc3#
      • 1...Re3
        • 2.dxe3#
      • 1...Rf3
        • 2.d3#
      • 1...Rg3
        • 2.d3#
      • 1...Rh3
        • 2.d3#
      • 1...Rd4
        • 2.d3#
      • 1...Rxb3!
  • Keys
    • 1.Sa3!
      • threat
        • 2.Rxb5#
      • 1...Rxb3
        • 2.e5#
      • 1...Rd5
        • 2.exd5#
      • 1...d5
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(a);OGATE::P(C),XR(a)
    • P(c);OGATE,XS(E)::R1(B),XP(c)
  • Tries
    • Try
      • S(E);XP(d)
      • Threat
        • R1(I),XP(c)
      • Vars
        • R(a);N_GUARD,XP(D)::QAR(G)+P(F)
        • R(a);OGATE::QAR(G)+P(F),XR(a)
      • Refutation
        • R(a);XS(E)
    • Try
      • Q(G);
      • Vars
        • R(a);OGATE,P_PINR(B),P_SPINR(a),XP(C)::QAB(G),XR(a)
        • P(c);OGATE,XS(E)::R1(B),XP(c)
        • R(a);OGATE::QAB(G)+P(C)
        • P(d);OGATEB::B(J)
        • R(a);OGATE::P(C),XR(a)
        • R(a);OGATE::QAB(G)+P(C),XR(a)
      • Refutation
        • R(a);XP(D)
  • Actual
    • S(E);
    • Threat
      • R1(I),XP(c)
    • Vars
      • R(a);N_GUARD,XP(D)::QAR(G)+P(F)
      • R(a);OGATE::QAR(G)+P(F),XR(a)
      • P(d);OGATEB::QAB(G)
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