MESON Chess Problem Database

Problem Display
PID: 57541 (7k/4p2P/3p3K/8/8/7b/8/3Q4 w - - 0 1)

Mott-Smith, Geoffrey

The Chess Review, 1936

7k/4p2P/3p3K/8/8/7b/8/3Q4

#2

3 + 4

3713 Snap 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Be6
      • 2.Qa1#
      • 2.Qd4#
  • Tries
    • 1.Qb3?
      • threat
        • 2.Qg8#
      • 1...Be6
        • 2.Qb2#
        • 2.Qc3#
      • 1...e6
        • 2.Qb8#
      • 1...d5!
    • 1.Qf3?
      • threat
        • 2.Qf8#
      • 1...Be6
        • 2.Qc3#
      • 1...Bf5!
    • 1.Qa4?
      • threat
        • 2.Qe8#
      • 1...Be6
        • 2.Qa1#
        • 2.Qd4#
      • 1...Bd7!
    • 1.Qxd6?
      • threat
        • 2.Qe5#
        • 2.Qd8#
      • 1...Be6
        • 2.Qe5#
        • 2.Qd4#
      • 1...Bd7
        • 2.Qe5#
      • 1...e5
        • 2.Qxe5#
        • 2.Qf8#
        • 2.Qf6#
        • 2.Qd8#
      • 1...exd6!
  • Keys
    • 1.Qd5!
      • threat
        • 2.Qg8#
      • 1...Be6
        • 2.Qd4#
      • 1...e6
        • 2.Qa8#

Anticipated by 21121(1916)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • P(c);S_CUTB(a)::QAR(A)
      • Refutation
        • P(b);
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • B(a);S_CUTP(c)::QAB(A)
      • Refutation
        • B(a);
    • Try
      • Q(A);
      • Threat
        • QAR(A)
      • Refutation
        • B(a);
    • Try
      • Q(A);XP(b)
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::QAB(A)
      • Refutation
        • P(c);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • B(a);S_CUTP(c)::QAB(A)
      • P(c);S_CUTB(a)::QAB1(A)
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