MESON Chess Problem Database

Problem Display
PID: 49257 (3R4/b7/1B4K1/2n1p3/2N1kpQ1/4P3/8/6n1 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Landeszeitung fur die Luneburger Heide, 2002

3R4/b7/1B4K1/2n1p3/2N1kpQ1/4P3/8/6n1

#2

6 + 6

6112 Problemschach-Jahrbuch (2002) 2003

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3
      • 2.Qf5#
    • 1...Sd3
      • 2.Sd2#
    • 1...Sa4
      • 2.Sd2#
    • 1...Sa6
      • 2.Sd2#
    • 1...Se6
      • 2.Sd2#
    • 1...Sb7
      • 2.Sd2#
  • Tries
    • 1.Bxc5?
      • threat
        • 2.Sd2#
      • 1...Sf3
        • 2.Qf5#
      • 1...Bxc5!
    • 1.Qg2+?
      • 1...f3
        • 2.Qg4#
      • 1...Sf3!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Qd5#
      • 1...fxe3
        • 2.Qg4#
      • 1...Sd3
        • 2.Sd2#
      • 1...Sd7
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • S(a);SBLOCK::QAB1(C)
    • S(d);::S(B)
  • Tries
    • Try
      • B(D);XS(d)
      • Threat
        • S(B)
      • Vars
        • S(a);SBLOCK::QAB1(C)
      • Refutation
        • B(f);XB(D)
    • Try
      • Q(C);CHECK,N_PINP(c)
      • Vars
        • P(c);OGATEB,P_SPINP(c)::QAR2(C)
      • Refutation
        • S(a);P_SPINS(a)
  • Actual
    • Q(C);N_PINP(c)
    • Threat
      • QAB1(C)
    • Vars
      • P(c);OGATEB,XP(A)::QAR2(C)
      • S(d);::S(B)
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