MESON Chess Problem Database

Problem Display
PID: 141164 (3N4/8/3p4/K1k2p2/3p4/8/3N3Q/8 w - - 0 1)

Winter-Wood, Edward John

Torquay Directory, 1882

3N4/8/3p4/K1k2p2/3p4/8/3N3Q/8

#2

4 + 4

15254 EJWW Scrapbook 2011

SOLUTION

  • SOUND
  • Sets
    • 1...d5
      • 2.Qc7#
  • Tries
    • 1.Sb7+?
      • 1...Kd5
        • 2.Qxd6#
      • 1...Kc6!
    • 1.Qe5+?
      • 1...d5
        • 2.Qc7#
        • 2.Qe7#
      • 1...dxe5!
    • 1.Qh1?
      • threat
        • 2.Se6#
        • 2.Sb7#
        • 2.Qc6#
      • 1...d3
        • 2.Se6#
      • 1...d5!
    • 1.Qe2?
      • threat
        • 2.Qc4#
        • 2.Qb5#
      • 1...Kd5
        • 2.Qb5#
      • 1...d5
        • 2.Qe7#
      • 1...d3!
    • 1.Qg2?
      • threat
        • 2.Se6#
        • 2.Sb7#
        • 2.Qc6#
      • 1...d3
        • 2.Se6#
      • 1...d5!
  • Keys
    • 1.Qf4!
      • 1...Kd5
        • 2.Qxf5#
      • 1...d3
        • 2.Qc4#
      • 1...d5
        • 2.Qc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(d);OGATE,SBLOCK::QAR2(B)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(B),XP(d)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Refutation
        • P(d);XQ(B)
    • Try
      • Q(B);
      • Threat
        • DUALS(3)
      • Vars
        • P(a);::S(D)
      • Refutation
        • P(d);
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);P-FLIGHT::QAR2(B)
        • P(d);OGATEB,SBLOCK::QAB(B)
      • Refutation
        • P(a);
    • Try
      • Q(B);
      • Threat
        • DUALS(3)
      • Vars
        • P(a);::S(D)
      • Refutation
        • P(d);
  • Actual
    • Q(B);
    • Vars
      • K(b);P-FLIGHT::QAR2(B),XP(c)
      • P(a);OGATE::QAR1(B)
      • P(d);OGATE,SBLOCK::QAR2(B)
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