MESON Chess Problem Database

Problem Display
PID: 46154 (4bQ2/2R1p3/KbpP4/2kp1R2/1pN5/1P2P3/8/8 w - - 0 1)

de Haas, Bastian Evert

Probleemblad, 2002

4bQ2/2R1p3/KbpP4/2kp1R2/1pN5/1P2P3/8/8

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...exd6
      • 2.Qxd6#
    • 1...e5
      • 2.d7#
    • 1...e6
      • 2.d7#
  • Tries
    • 1.Sa5?
      • threat
        • 2.Sb7#
      • 1...Kxd6
        • 2.Qxe7#
      • 1...Bxa5!
    • 1.Sxb6?
      • threat
        • 2.Rxd5#
      • 1...Kxd6
        • 2.Qxe7#
      • 1...e5
        • 2.Sa4#
        • 2.d7#
      • 1...e6
        • 2.Sa4#
        • 2.d7#
      • 1...Bf7!
    • 1.Qxe7?
      • threat
        • 2.d7#
      • 1...Bxc7
        • 2.dxc7#
      • 1...Bd7!
  • Keys
    • 1.Sd2!
      • threat
        • 2.Se4#
      • 1...Kxd6
        • 2.Qxe7#
      • 1...e5
        • 2.d7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • P(f);OGATE,XP(F)::QAB1(H),XP(f)
    • P(f);N_SPINP(c),P_SPINP(e)::QAB(H)+P(F)
    • P(f);::QAB(H)+P(F)
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • K(b);N_SPINP(c),OGATEB,P_SPINP(f),S_FLIGHT,XP(F)::QAB1(H),XP(f)
      • Refutation
        • B(d);XS(C)
    • Try
      • S(C);XB(d)
      • Threat
        • R1(D),XP(c)
      • Vars
        • K(b);N_SPINP(c),OGATEB,P_SPINP(f),S_FLIGHT,XP(F)::QAB1(H),XP(f)
      • Refutation
        • B(g);
    • Try
      • Q(H);XP(f)
      • Threat
        • QAB(H)+P(F)
      • Vars
        • B(d);OGATE,XR(G)::QAB(H)+P(F),XB(d)
      • Refutation
        • B(g);
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • K(b);N_SPINP(c),OGATEB,P_SPINP(f),S_FLIGHT,XP(F)::QAB1(H),XP(f)
      • P(f);N_SPINP(c),P_SPINP(e)::QAB(H)+P(F)
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