MESON Chess Problem Database

Problem Display
PID: 230328 (5b2/1pQ2Pp1/1Rbpk1B1/K3p1PN/2P5/3N4/8/8 w - - 0 1)

Allen, Frederick B

Southend Times, 1939

(First published on Wed Jan 18 1939)

5b2/1pQ2Pp1/1Rbpk1B1/K3p1PN/2P5/3N4/8/8

#2

9 + 7

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bh1
      • 2.Sc5#
    • 1...Bg2
      • 2.Sc5#
    • 1...Bf3
      • 2.Sc5#
    • 1...Ba4
      • 2.Sc5#
    • 1...Be4
      • 2.Sc5#
    • 1...Bb5
      • 2.Sc5#
    • 1...Bd5
      • 2.Sc5#
    • 1...Be8
      • 2.Sc5#
    • 1...Be7
      • 2.Sxg7#
    • 1...e4
      • 2.Shf4#
  • Keys
    • 1.Qd8!
      • 1...Be7
        • 2.Sxg7#
      • 1...Bh1
        • 2.Sc5#
      • 1...Bg2
        • 2.Sc5#
      • 1...Bf3
        • 2.Sc5#
      • 1...Ba4
        • 2.Sc5#
      • 1...Be4
        • 2.Sc5#
      • 1...Bb5
        • 2.Sc5#
      • 1...Bd5
        • 2.Sc5#
      • 1...Bd7
        • 2.Sc5#
      • 1...Be8
        • 2.Sc5#
      • 1...e4
        • 2.Shf4#
      • 1...d5
        • 2.cxd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(b);P_SPINP(c)::S(A)
    • B(g);N_GUARD::S(E),XP(f)
    • P(a);N_GUARD::S(E)
  • Actual
    • Q(H);
    • Vars
      • B(g);N_GUARD::S(E),XP(f)
      • B(b);P_SPINP(c)::S(A)
      • P(a);N_GUARD::S(E)
      • P(c);OGATE,P_SPINB(b)::P(B),XP(c)
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