MESON Chess Problem Database

Problem Display
PID: 45868 (5rbQ/6Rp/4P2r/2p1N3/8/P1kp1P2/B1p5/K1B5 w - - 0 1)

Ahues, Herbert Siegfried Oskar

3rd Prize, Main-Post, 1961

5rbQ/6Rp/4P2r/2p1N3/8/P1kp1P2/B1p5/K1B5

#2

9 + 8

3749 FIDE Album (1959-1961) 1966

SOLUTION

  • SOUND
  • Sets
    • 1...d2
      • 2.Bb2#
  • Tries
    • 1.Sc4?
      • threat
        • 2.Bb2#
      • 1...Kd4
        • 2.Rd7#
      • 1...Rh1
        • 2.Rf7#
      • 1...Rb8
        • 2.Rg6#
      • 1...d2!
    • 1.Bd2+?
      • 1...Kd4
        • 2.Sc6#
        • 2.Rd7#
      • 1...Kxd2!
  • Keys
    • 1.Rg2!
      • threat
        • 2.Bb2#
      • 1...Kd4
        • 2.Sc6#
      • 1...Rh1
        • 2.Sf7#
      • 1...Rb8
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(c);SBLOCK::B(B)
  • Tries
    • Try
      • S(F);
      • Threat
        • B(B)
      • Vars
        • K(b);S_FLIGHT::QAB(I)+R(H),DCHECK
        • R(e);N_GUARD,P_PINB(B)::QAB(I)+R(H)
        • R(g);N_GUARD::QAB(I)+R(H)
      • Refutation
        • P(c);
    • Try
      • B(B);CHECK
      • Refutation
        • K(b);S_FLIGHT,XB(B)
  • Actual
    • R(H);
    • Threat
      • B(B)
    • Vars
      • K(b);S_FLIGHT::QAB(I)+S(F),DCHECK
      • R(e);N_GUARD,P_PINB(B)::QAB(I)+S(F)
      • R(g);N_GUARD::QAB(I)+S(F)
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