MESON Chess Problem Database

Problem Display
PID: 144771 (5n2/1Q1n4/1N6/7R/pkN5/b7/3P4/1K6 w - - 0 1)

Boswell, Edward

Illustrated London News, 1927

(First published on Sat Jul 23 1927)

5n2/1Q1n4/1N6/7R/pkN5/b7/3P4/1K6

#2

6 + 5

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Tries
    • 1.Qxd7?
      • threat
        • 2.Rb5#
        • 2.Qxa4#
        • 2.Qb5#
      • 1...Kb3
        • 2.Qxa4#
      • 1...Sxd7!
  • Keys
    • 1.Rh4!
      • threat
        • 2.Sxd7#
      • 1...Kb3
        • 2.Sa5#
      • 1...Kb5
        • 2.Sxd7#
      • 1...Kc5
        • 2.Sxa4#
      • 1...Sxb6
        • 2.Qxb6#
      • 1...Sc5
        • 2.Sd5#
      • 1...Se5
        • 2.Sd7#
      • 1...Sf6
        • 2.Sd7#
      • 1...Sb8
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);XS(d)
      • Threat
        • DUALS(3)
      • Vars
        • K(c);P-FLIGHT::QAB1(F),XP(b)
      • Refutation
        • S(e);XQ(F)
  • Actual
    • R(D);
    • Threat
      • QAR(F)+S(E),XS(d)
    • Vars
      • K(c);P-FLIGHT::S(C)
      • K(c);P-FLIGHT::QAR(F)+S(E),XS(d)
      • K(c);S_FLIGHT::S(E),XP(b)
      • S(d);OGATE,P_SPINS(d),XS(E)::QAR2(F),XS(d)
      • S(d);SBLOCK::QAR(F)+S(E),DCHECK
      • S(d);::QAR(F)+S(E)
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