MESON Chess Problem Database

Problem Display
PID: 205475 (8/8/8/4b2Q/6N1/8/4K1p1/6kb w - - 0 1)

Ehrmann, Willi

Badische Neueste Nachrichten, 1949

8/8/8/4b2Q/6N1/8/4K1p1/6kb

#2

3 + 4

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ba1
      • 2.Qh2#
    • 1...Bb2
      • 2.Qh2#
    • 1...Bh2
      • 2.Qxh2#
      • 2.Qc5#
    • 1...Bc3
      • 2.Qh2#
    • 1...Bd4
      • 2.Qh2#
    • 1...Bf6
      • 2.Qh2#
    • 1...Bc7
      • 2.Qc5#
    • 1...Bg7
      • 2.Qh2#
    • 1...Bb8
      • 2.Qc5#
    • 1...Bh8
      • 2.Qh2#
  • Tries
    • 1.Qh4?
      • threat
        • 2.Qe1#
        • 2.Qf2#
      • 1...Bc3
        • 2.Qf2#
        • 2.Qh2#
      • 1...Bd4
        • 2.Qe1#
        • 2.Qh2#
      • 1...Bg3!
  • Keys
    • 1.Sh2!
      • threat
        • 2.Sf3#
      • 1...Bxh2
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • B(d);N_GUARD::QAB1(C)
    • B(d);OGATE::QAB(C)
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Refutation
        • B(d);
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • B(d);OGATE,SBLOCK,XS(B)::QAB(C)
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