MESON Chess Problem Database

Problem Display
PID: 102788 (2K5/6Q1/2p1RN2/5k2/3n1r1n/5pb1/6b1/7N w - - 0 1)

Lawton, Howard

The Field, 1954

(First published on Thu Jul 22 1954)

2K5/6Q1/2p1RN2/5k2/3n1r1n/5pb1/6b1/7N

#2

5 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rg4
      • 2.Qxg4#
  • Tries
    • 1.Sd7?
      • threat
        • 2.Re5#
      • 1...Sxe6
        • 2.Sxg3#
      • 1...Re4
        • 2.Rf6#
      • 1...Rg4
        • 2.Qf6#
      • 1...Sg6
        • 2.Qxg6#
      • 1...Kxe6!
  • Keys
    • 1.Sg4!
      • threat
        • 2.Re5#
      • 1...Kxe6
        • 2.Qd7#
      • 1...Rxg4
        • 2.Qf6#
      • 1...Sxe6
        • 2.Sxg3#
      • 1...Re4
        • 2.Rf6#
      • 1...Sg6
        • 2.Qxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(e);N_GUARD::QAB1(D),XR(e)
  • Tries
    • Try
      • S(C);
      • Threat
        • R1(B)
      • Vars
        • S(d);SBLOCK,XR(B)::S(A),XB(c)
        • R(e);SBLOCK::R1(B)
        • R(e);SBLOCK::QAR1(D)
        • S(f);N_GUARD::QAB1(D),XS(f)
      • Refutation
        • K(g);S_FLIGHT,XR(B)
  • Actual
    • S(C);
    • Threat
      • R1(B)
    • Vars
      • K(g);OGATEB,S_FLIGHT,XR(B)::QAB1(D)
      • R(e);SBLOCK,XS(C)::QAR1(D)
      • S(d);SBLOCK,XR(B)::S(A),XB(c)
      • R(e);SBLOCK::R1(B)
      • S(f);N_GUARD::QAB1(D),XS(f)
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