MESON Chess Problem Database

Problem Display
PID: 224191 (8/1B4N1/2pp4/P1k5/P1p5/2Pp4/2PN4/Q5K1 w - - 0 1)

Bourd, Evgeny

Variantim, 2005

8/1B4N1/2pp4/P1k5/P1p5/2Pp4/2PN4/Q5K1

#2

9 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...d5
      • 2.Qa3#
  • Tries
    • 1.Qb2?
      • 1...Kd5
        • 2.Qb5#
      • 1...d5
        • 2.Qa3#
        • 2.Qb4#
      • 1...dxc2!
    • 1.Qb1?
      • 1...Kd5
        • 2.Qb5#
      • 1...d5
        • 2.Qb4#
      • 1...dxc2!
    • 1.Qd1?
      • 1...Kd5
        • 2.Qh5#
      • 1...dxc2
        • 2.Se4#
      • 1...d5!
    • 1.Qa2?
      • threat
        • 2.Qxc4#
      • 1...d5
        • 2.Qa3#
      • 1...Kd5!
  • Keys
    • 1.Qf1!
      • 1...Kd5
        • 2.Qf5#
      • 1...dxc2
        • 2.Qxc4#
      • 1...d5
        • 2.Qf8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(e);SBLOCK::QAB(A)
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(c);P-FLIGHT,P_SPINP(d)::QAR2(A)
      • Refutation
        • P(a);XP(C)
    • Try
      • Q(A);
      • Vars
        • K(c);P-FLIGHT,P_SPINP(d)::QAR2(A)
        • P(e);SBLOCK::QAB1(A)
      • Refutation
        • P(a);XP(C)
    • Try
      • Q(A);
      • Vars
        • K(c);P-FLIGHT,P_SPINP(d)::QAR(A)
        • P(a);XP(C)::S(D)
      • Refutation
        • P(e);
    • Try
      • Q(A);
      • Threat
        • QAR1(A),XP(b)
      • Vars
        • P(e);SBLOCK::QAB(A)
      • Refutation
        • K(c);P-FLIGHT,P_SPINP(b)
  • Actual
    • Q(A);
    • Vars
      • K(c);P-FLIGHT,P_SPINP(d)::QAR2(A)
      • P(a);OGATE,XP(C)::QAR1(A),XP(b)
      • P(e);OGATEB,SBLOCK::QAB(A)
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