MESON Chess Problem Database

Problem Display
PID: 47092 (1R6/1b6/1NpP4/p1k3B1/K7/8/8/1Q6 w - - 0 1)

Clark, DW

The Westminster Papers, 1878

1R6/1b6/1NpP4/p1k3B1/K7/8/8/1Q6

#2

6 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Qd3?
      • threat
        • 2.Sd7#
        • 2.Be3#
      • 1...Bc8
        • 2.Be3#
      • 1...Kxb6!
    • 1.Qe4?
      • 1...Kxd6
        • 2.Qe7#
      • 1...Ba6
        • 2.Qe5#
      • 1...Ba8
        • 2.Qe5#
      • 1...Bc8
        • 2.Qe5#
      • 1...Kxb6!
    • 1.Qb2?
      • 1...Ba6
        • 2.Qe5#
      • 1...Ba8
        • 2.Qe5#
      • 1...Bc8
        • 2.Qe5#
      • 1...Kxd6!
  • Keys
    • 1.Qe1!
      • 1...Kd4
        • 2.Qe3#
      • 1...Kxb6
        • 2.Qxa5#
      • 1...Kxd6
        • 2.Qe7#
      • 1...Ba6
        • 2.Qe5#
      • 1...Ba8
        • 2.Qe5#
      • 1...Bc8
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(d);::B(C)
      • Refutation
        • K(b);P_SPINB(d),S_FLIGHT,XS(D)
    • Try
      • Q(A);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XP(E)::QAB1(A)
        • B(d);::QAR2(A)
      • Refutation
        • K(b);P_SPINB(d),S_FLIGHT,XS(D)
    • Try
      • Q(A);
      • Vars
        • B(d);::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT,XP(E)
  • Actual
    • Q(A);
    • Vars
      • K(b);S_FLIGHT::QAB1(A)
      • K(b);P_SPINB(d),S_FLIGHT,XS(D)::QAB1(A),XP(a)
      • K(b);OGATEB,S_FLIGHT,XP(E)::QAB1(A)
      • B(d);::QAR2(A)
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