MESON Chess Problem Database

Problem Display
PID: 157299 (5nb1/8/2P2p1r/1BBk4/1P1PR3/3p1KN1/1b4Q1/3n4 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Schach, 1955

5nb1/8/2P2p1r/1BBk4/1P1PR3/3p1KN1/1b4Q1/3n4

#2

9 + 8

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Ba1
      • 2.Qa2#
    • 1...Bc1
      • 2.Qa2#
    • 1...Ba3
      • 2.Qa2#
    • 1...Bc3
      • 2.Qa2#
    • 1...Bxd4
      • 2.Qa2#
    • 1...f5
      • 2.Re5#
  • Keys
    • 1.Re6!
      • threat
        • 2.Rd6#
      • 1...Kxe6
        • 2.Bc4#
      • 1...Bxd4
        • 2.Qa2#
      • 1...Bxe6
        • 2.Kf4#
      • 1...Sxe6
        • 2.Kg4#
      • 1...f5
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • B(b);OGATE::QAB(A)
    • B(b);OGATE,XP(E)::QAB(A)
    • P(e);N_GUARD::R1(F)
  • Actual
    • R(F);
    • Threat
      • R1(F)
    • Vars
      • K(d);S_FLIGHT,XR(F)::B(G)
      • B(b);OGATE,XP(E)::QAB(A)
      • B(h);SBLOCK,XR(F)::QAB(A)+K(B)
      • S(g);SBLOCK,XR(F)::QAB(A)+K(B)
      • P(e);N_GUARD::R1(F)
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