MESON Chess Problem Database

Problem Display
PID: 153845 (8/4R1bq/2N5/4p1Bp/KNP1p3/1Q6/R1nPkp2/3brrn1 w - - 0 1)

Alexander, Frederick Forrest Lawrie

Anderson, Gerald Frank

Nottinghamshire Weekly Guardian, 1938

8/4R1bq/2N5/4p1Bp/KNP1p3/1Q6/R1nPkp2/3brrn1

#2

9 + 12

15373 FFLA Scrapbook 2015

SOLUTION

  • SOUND
  • Tries
    • 1.Sxc2?
      • threat
        • 2.Qe3#
      • 1...e3
        • 2.Qxe3#
      • 1...Bxc2!
    • 1.Sd4+?
      • 1...exd4
        • 2.Qd3#
      • 1...Sxd4!
    • 1.Rxc2?
      • threat
        • 2.Qe3#
      • 1...e3
        • 2.Qxe3#
      • 1...Bxc2!
  • Keys
    • 1.d4!
      • threat
        • 2.Qe3#
      • 1...exd4
        • 2.Qd3#
      • 1...exd4 ep
        • 2.Sd4#
      • 1...e3
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);XS(e)
      • Threat
        • QAR1(C)
      • Vars
        • P(h);::QAR1(C),XP(h)
      • Refutation
        • B(a);P_PINQ(C),XS(E)
    • Try
      • S(H);CHECK
      • Vars
        • P(i);P_SPINP(h),XS(H)::QAB1(C)
      • Refutation
        • S(e);P_PINQ(C),XS(H)
    • Try
      • R(A);XS(e)
      • Threat
        • QAR1(C)
      • Vars
        • P(h);::QAR1(C),XP(h)
      • Refutation
        • B(a);P_PINQ(C),XR(A)
  • Actual
    • P(B);P_PINS(e)
    • Threat
      • QAR1(C)
    • Vars
      • P(i);P_SPINP(h),XP(B)::QAB1(C)
      • P(h);EP,P_SPINP(i),XP(B)::S(H)
      • P(h);::QAR1(C),XP(h)
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