MESON Chess Problem Database

Problem Display
PID: 206967 (8/6B1/4p1p1/3p4/2pNkbNP/2p1P1PB/3R2K1/8 w - - 0 1)

Bartel, Erich

Deutsche Schachblatter, 1964

8/6B1/4p1p1/3p4/2pNkbNP/2p1P1PB/3R2K1/8

#2

9 + 7

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sf5?
      • threat
        • 2.Sf2#
      • 1...Kxf5
        • 2.Sf2#
      • 1...Bxe3
        • 2.Sd6#
      • 1...Bxg3
        • 2.Sxg3#
      • 1...exf5
        • 2.Rd4#
      • 1...gxf5
        • 2.Rd4#
      • 1...d4!
    • 1.Re2?
      • threat
        • 2.Sf2#
      • 1...Kd3
        • 2.Sf2#
      • 1...Bxg3!
  • Keys
    • 1.Sf2+!
      • 1...Kxe3
        • 2.Re2#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Threat
        • S(G)
      • Vars
        • K(c);S_FLIGHT,XS(F)::B(E)+S(G)
        • B(d);N_GUARD,XP(C)::S(F)
        • B(d);XP(D)::S(F),XB(d)
        • P(f);SBLOCK,XS(F)::R1(A)
        • P(g);SBLOCK,XS(F)::R1(A)
      • Refutation
        • P(e);
    • Try
      • R(A);
      • Threat
        • S(G)
      • Vars
        • K(c);S_FLIGHT::S(G)
      • Refutation
        • B(d);XP(D)
  • Actual
    • S(G);CHECK
    • Vars
      • K(c);P-FLIGHT,XP(C)::R1(A)
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