MESON Chess Problem Database

Problem Display
PID: 140321 (BB2R3/7N/1p1rbp2/3nk2p/R3Pn2/2P1N3/3P3K/8 w - - 0 1)

Eerkes, Allard Pieter

2nd HM., Nepszava, 1940

BB2R3/7N/1p1rbp2/3nk2p/R3Pn2/2P1N3/3P3K/8

#2

10 + 8

102 Probleemblad 1976

SOLUTION

  • SOUND
  • Sets
    • 1...Sxc3
      • 2.d4#
    • 1...Sxe3
      • 2.d4#
    • 1...Sb4
      • 2.Sc4#
      • 2.d4#
    • 1...Sc7
      • 2.Sc4#
    • 1...Se7
      • 2.d4#
    • 1...h4
      • 2.Sg4#
  • Keys
    • 1.Sf8!
      • threat
        • 2.Sd7#
      • 1...Se2
        • 2.Sg6#
      • 1...Sg2
        • 2.Sg6#
      • 1...Sd3
        • 2.Sg6#
      • 1...Sh3
        • 2.Sg6#
      • 1...Sg6
        • 2.Sxg6#
      • 1...Sc7
        • 2.Sc4#
      • 1...Se7
        • 2.d4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • S(b);XP(C)::P(A)
    • S(b);XS(D)::P(A)
    • S(b);N_SPINR(f)::S(D)
    • S(b);N_SPINB(g)::P(A)
    • P(d);N_GUARD::S(D)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • S(a);N_GUARD::S(G)
      • S(a);N_GUARD::S(G),XS(a)
      • S(b);N_SPINR(f)::S(D)
      • S(b);N_SPINB(g)::P(A)
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