MESON Chess Problem Database

Problem Display
PID: 205827 (4Kb2/8/3pkp2/5N2/4P3/B2N4/4n3/2nB4 w - - 0 1)

Ulmer, Rudi

Badische Neueste Nachrichten, 1951

4Kb2/8/3pkp2/5N2/4P3/B2N4/4n3/2nB4

#2

6 + 6

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Be7
      • 2.Sg7#
    • 1...Bg7
      • 2.Sxg7#
    • 1...Sg1
      • 2.Sd4#
    • 1...Sc3
      • 2.Sd4#
    • 1...Sg3
      • 2.Sd4#
    • 1...Sd4
      • 2.Sxd4#
    • 1...Sf4
      • 2.Sd4#
  • Tries
    • 1.Bb3+?
      • 1...d5
        • 2.Bxd5#
      • 1...Sxb3!
  • Keys
    • 1.Bxd6!
      • threat
        • 2.Sc5#
      • 1...Bxd6
        • 2.Sg7#
      • 1...Sxd3
        • 2.Bb3#
      • 1...Sb3
        • 2.Bxb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • B(f);N_GUARD::S(E)
    • B(f);N_GUARD::S(E),XB(f)
    • S(b);N_GUARD::S(E)
    • S(b);N_GUARD::S(E),XS(b)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • P(c);P_SPINP(c)::B(A),XP(c)
      • Refutation
        • S(a);XB(A)
  • Actual
    • B(B);XP(c)
    • Threat
      • S(C)
    • Vars
      • B(f);N_GUARD,SBLOCK,XB(B)::S(E)
      • S(a);N_GUARD,XS(C)::B(A)
      • S(a);N_GUARD::B(A),XS(a)
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