MESON Chess Problem Database

Problem Display
PID: 81987 (4K3/2pP2B1/R1rrkNn1/4P2Q/1N3nbp/7q/8/1B6 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Problemas, 1994

4K3/2pP2B1/R1rrkNn1/4P2Q/1N3nbp/7q/8/1B6

#2

9 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.d8S#
    • 1...Rc2
      • 2.d8S#
    • 1...Rc3
      • 2.d8S#
    • 1...Rc4
      • 2.d8S#
    • 1...Rc5
      • 2.d8S#
  • Tries
    • 1.Bf5+?
      • 1...Kxe5
        • 2.Sxg4#
      • 1...Bxf5!
  • Keys
    • 1.Se4!
      • threat
        • 2.Sg5#
      • 1...Qd3
        • 2.Qxg4#
      • 1...Rc2
        • 2.d8S#
      • 1...Rd3
        • 2.Sc5#
      • 1...Sd3
        • 2.Qxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • R(e);P_SPINR(f)::P=S
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • K(g);P-FLIGHT,XP(C)::B(H)+S(F),DCHECK,XB(c)
      • Refutation
        • B(c);XB(A)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • Q(a);N_GUARD::QAB(D),XB(c)
      • R(e);P_SPINR(f)::P=S
      • R(f);P_SPINR(e)::S(F)
      • S(b);N_GUARD::QAR2(D),XS(h)
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