MESON Chess Problem Database

Problem Display
PID: 54376 (8/4bN2/8/3k1K2/1n6/2Q5/5B2/8 w - - 0 1)

Zimmer, Eligiusz

StrateGems, 2004

8/4bN2/8/3k1K2/1n6/2Q5/5B2/8

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Bh4
      • 2.Qc5#
    • 1...Bc5
      • 2.Qxc5#
    • 1...Bg5
      • 2.Qc5#
    • 1...Bf6
      • 2.Qc5#
    • 1...Bd8
      • 2.Qc5#
    • 1...Sc6
      • 2.Qb3#
  • Tries
    • 1.Sd8?
      • threat
        • 2.Qd4#
      • 1...Bxd8
        • 2.Qc5#
      • 1...Bc5
        • 2.Qxc5#
      • 1...Bf6
        • 2.Qc5#
      • 1...Sc2
        • 2.Qc6#
      • 1...Sc6
        • 2.Qxc6#
      • 1...Kd6!
  • Keys
    • 1.Se5!
      • threat
        • 2.Qd4#
      • 1...Kd6
        • 2.Qc5#
      • 1...Bc5
        • 2.Qxc5#
      • 1...Sc2
        • 2.Qc6#
      • 1...Sc6
        • 2.Qxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • B(c);N_GUARD::QAR1(B)
    • B(c);N_GUARD::QAR1(B),XB(c)
    • S(a);SBLOCK::QAB(B)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR1(B)
      • Vars
        • B(c);N_GUARD,XS(D)::QAR1(B)
        • B(c);N_GUARD::QAR1(B),XB(c)
        • B(c);N_GUARD::QAR1(B)
        • S(a);N_GUARD::QAB1(B)
        • S(a);N_GUARD::QAB1(B),XS(a)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • S(D);
    • Threat
      • QAR1(B)
    • Vars
      • K(b);P-FLIGHT::QAB1(B)
      • B(c);N_GUARD::QAR1(B),XB(c)
      • S(a);N_GUARD::QAB1(B)
      • S(a);N_GUARD::QAB1(B),XS(a)
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