MESON Chess Problem Database

Problem Display
PID: 183371 (3N4/4n3/3R1p1r/7p/5kNB/p3pP1B/rb1PK3/8 w - - 0 1)

Beszczynski, Jan

Bulletin Ouvrier des Echecs, 1955

3N4/4n3/3R1p1r/7p/5kNB/p3pP1B/rb1PK3/8

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sf5
      • 2.Se6#
    • 1...f5
      • 2.dxe3#
  • Tries
    • 1.Sf2?
      • threat
        • 2.Sd3#
      • 1...Ke5
        • 2.Bg3#
      • 1...exf2!
  • Keys
    • 1.Se5!
      • threat
        • 2.Sd3#
      • 1...Kxe5
        • 2.Bg3#
      • 1...Bxe5
        • 2.Se6#
      • 1...fxe5
        • 2.dxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(i);SBLOCK::S(H)
    • P(g);SBLOCK::P(A),XP(d)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • K(e);S_FLIGHT::B(F)
      • Refutation
        • P(d);XS(E)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(e);S_FLIGHT,XS(E)::B(F)
      • B(b);P_PINP(A),SBLOCK,XS(E)::S(H)
      • P(g);SBLOCK,XS(E)::P(A),XP(d)
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