MESON Chess Problem Database

Problem Display
PID: 187437 (8/8/1n1N2b1/8/r2p2BK/2PkP3/p2B4/2Q5 w - - 0 1)

Ahues, Herbert Siegfried Oskar

5th Prize, Het Belgisch Schaakbord (L'Echiquier Belge), 1997-1998

8/8/1n1N2b1/8/r2p2BK/2PkP3/p2B4/2Q5

#2

7 + 6

5110 Bekroonde Problemen 2002

SOLUTION

  • SOUND
  • Sets
    • 1...dxc3
      • 2.Qxc3#
  • Tries
    • 1.Be1?
      • threat
        • 2.Qd2#
      • 1...dxc3
        • 2.Qxc3#
      • 1...dxe3
        • 2.Qd1#
      • 1...Sc4!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Be2#
      • 1...dxc3
        • 2.Bc1#
      • 1...dxe3
        • 2.Be1#
      • 1...Bh5
        • 2.Bf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(d);OGATE,P_PINB(E),XP(C)::QAR1(A),XP(d)
  • Tries
    • Try
      • B(B);
      • Threat
        • QAR1(A)
      • Vars
        • P(d);OGATE,P_PINB(E),XP(C)::QAR1(A),XP(d)
        • P(d);P_PINB(E),SBLOCK,XP(D)::QAR2(A)
      • Refutation
        • S(e);
  • Actual
    • Q(A);
    • Threat
      • B(E)
    • Vars
      • P(d);P_PINB(E),SBLOCK,XP(C)::QAR(A)+B(B)
      • P(d);P_PINB(E),SBLOCK,XP(D)::QAR(A)+B(B)
      • B(f);N_GUARD::B(E)
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