MESON Chess Problem Database

Problem Display
PID: 161028 (1K2b2B/2NQ1p2/3nr3/1p4bR/2kP2R1/2pN4/2P2p1q/5B2 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Neue Zurcher Zeitung, 1977

1K2b2B/2NQ1p2/3nr3/1p4bR/2kP2R1/2pN4/2P2p1q/5B2

#2

10 + 10

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Rc5#
    • 1...Bd2
      • 2.Rc5#
    • 1...Be3
      • 2.Rc5#
    • 1...Bf4
      • 2.Rc5#
    • 1...Bh4
      • 2.Rc5#
    • 1...Bf6
      • 2.Rc5#
    • 1...Bh6
      • 2.Rc5#
    • 1...Be7
      • 2.Rc5#
    • 1...Bd8
      • 2.Rc5#
    • 1...Se4
      • 2.Qd5#
    • 1...Sf5
      • 2.Qd5#
    • 1...Sb7
      • 2.Qd5#
    • 1...Sc8
      • 2.Qd5#
    • 1...b4
      • 2.Sb2#
      • 2.Se5#
    • 1...f5
      • 2.Qxe6#
    • 1...f6
      • 2.Qxe6#
  • Keys
    • 1.Sd5!
      • threat
        • 2.Sb6#
      • 1...Se4+
        • 2.S3f4#
      • 1...Sf5+
        • 2.Se5#
      • 1...Sb7+
        • 2.Se5#
      • 1...Sc8+
        • 2.Se5#
      • 1...Kxd5
        • 2.Sb4#
      • 1...Bd8
        • 2.Sb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 5
    • ADDED MATES = 1
    • REMOVED MATES = 10
  • Sets
    • B(f);OGATE::R1(F)
    • S(g);OGATE,P_PINS(G)::QAB1(H)
    • P(i);N_GUARD::QAB(H),XR(h)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • S(g);CHECK,S_CUTR(h)::B(A)+S(C)
      • S(g);CHECK::B(A)+S(C),DCHECK
      • K(d);P_SPINB(f),P_SPINS(g),S_FLIGHT,XS(G)::S(C)
      • B(f);::B(A)+S(C),DCHECK
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