MESON Chess Problem Database

Problem Display
PID: 106758 (1b6/p2Q3n/K4R2/4k1pP/p7/3p1PnN/8/q5r1 w - - 0 1)

Lawton, Howard

The Field, 1954

(First published on Thu Nov 11 1954)

1b6/p2Q3n/K4R2/4k1pP/p7/3p1PnN/8/q5r1

#2

6 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qd4
      • 2.Qe6#
    • 1...Bd6
      • 2.Qxd6#
    • 1...Sf1
      • 2.Rf5#
    • 1...Sh1
      • 2.Rf5#
    • 1...Se2
      • 2.Rf5#
    • 1...Se4
      • 2.Rf5#
    • 1...Sf5
      • 2.Rxf5#
      • 2.Re6#
    • 1...Sxh5
      • 2.Rf5#
  • Keys
    • 1.Sf2!
      • threat
        • 2.Sg4#
      • 1...Kxf6
        • 2.Sg4#
      • 1...Sxh5
        • 2.Rf5#
      • 1...Sxf6
        • 2.Sxd3#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Sf5
        • 2.Rxf5#
      • 1...Qd4
        • 2.Qe6#
      • 1...Sf1
        • 2.Rf5#
      • 1...Sh1
        • 2.Rf5#
      • 1...Se2
        • 2.Rf5#
      • 1...Se4
        • 2.Rf5#
      • 1...g4
        • 2.Sxg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • Q(a);SBLOCK::QAR1(F)
    • B(j);N_GUARD::QAB1(F),XB(j)
    • S(d);N_GUARD::R1(E)
    • S(d);N_GUARD,XP(C)::R1(E)
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • K(f);S_FLIGHT,XR(E)::S(B)
      • S(d);N_GUARD,XP(C)::R1(E)
      • S(i);SBLOCK,XR(E)::S(B),XP(c)
      • B(j);N_GUARD::QAB1(F),XB(j)
      • S(d);N_GUARD::R1(E),XS(d)
      • Q(a);SBLOCK::QAR1(F)
      • S(d);N_GUARD::R1(E)
      • P(g);::S(B),XP(g)
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