MESON Chess Problem Database

Problem Display
PID: 252899 (8/1qp2QK1/8/1pR3N1/3pRB2/2Pk4/2p5/1nn5 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Deutsche Schachzeitung, 1985

8/1qp2QK1/8/1pR3N1/3pRB2/2Pk4/2p5/1nn5

#2

7 + 8

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...b4
      • 2.Qc4#
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qh3#
      • 1...c6+
        • 2.Re7#
      • 1...Qxe4
        • 2.Qxe4#
      • 1...Qc8
        • 2.Re6#
      • 1...Sd2
        • 2.Re3#
      • 1...Se2
        • 2.Rxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • P(f);N_GUARD::QAB1(F)
  • Actual
    • Q(F);
    • Threat
      • QAR(F)
    • Vars
      • P(h);CHECK,S_CUTQ(g)::QAB(F)+R(B)
      • Q(g);OGATE,P_SPINQ(g),XR(B)::QAB1(F),XQ(g)
      • Q(g);N_GUARD::QAB(F)+R(B)
      • S(a);SBLOCK::QAB(F)+R(B),DCHECK
      • S(b);SBLOCK::QAB(F)+R(B),DCHECK,XP(e)
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