MESON Chess Problem Database

Problem Display
PID: 82285 (2rr4/b5p1/5pK1/R4N2/NP2k3/q3PpB1/8/3RQB1n w - - 0 1)

Ahues, Herbert Siegfried Oskar

Tribune de Geneve, 1985

2rr4/b5p1/5pK1/R4N2/NP2k3/q3PpB1/8/3RQB1n

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Sxd6#
    • 1...Re8
      • 2.Sd6#
    • 1...Rf8
      • 2.Sd6#
    • 1...Rg8
      • 2.Sd6#
    • 1...Rh8
      • 2.Sd6#
    • 1...Sxg3
      • 2.Sxg3#
    • 1...f2
      • 2.Bg2#
  • Tries
    • 1.Bd6?
      • threat
        • 2.Qh4#
      • 1...Qxe3
        • 2.Bd3#
      • 1...Bxe3
        • 2.Rd4#
      • 1...f2
        • 2.Bg2#
      • 1...Sf2
        • 2.Sg3#
      • 1...Sg3
        • 2.Sxg3#
      • 1...Rh8!
  • Keys
    • 1.Bc7!
      • threat
        • 2.Qh4#
      • 1...Qxe3
        • 2.Sc3#
      • 1...Bxe3
        • 2.Sc5#
      • 1...f2
        • 2.Bg2#
      • 1...Rh8
        • 2.Sd6#
      • 1...Sf2
        • 2.Sg3#
      • 1...Sg3
        • 2.Sxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • R(i);N_GUARD::S(I),XR(i)
    • R(i);N_GUARD::S(I)
    • S(a);XB(E)::S(I),XS(a)
    • P(c);OGATEB::B(C)
  • Tries
    • Try
      • B(E);
      • Threat
        • QAR(B)
      • Vars
        • Q(b);N_GUARD,P_SPINQ(b),XP(D)::B(C)
        • B(f);N_GUARD,P_SPINB(f),XP(D)::R1(A)
        • P(c);OGATEB::B(C)
        • S(a);N_GUARD::S(I)
        • S(a);N_GUARD::S(I),XS(a)
      • Refutation
        • R(i);
  • Actual
    • B(E);
    • Threat
      • QAR(B)
    • Vars
      • Q(b);N_GUARD,P_SPINQ(b),XP(D)::S(F)
      • B(f);N_GUARD,P_SPINB(f),XP(D)::S(F)
      • P(c);OGATEB::B(C)
      • R(i);N_GUARD::S(I)
      • S(a);N_GUARD::S(I)
      • S(a);N_GUARD::S(I),XS(a)
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