MESON Chess Problem Database

Problem Display
PID: 107282 (4b3/8/4p3/8/3Q4/3N4/3pp2K/3k4 w - - 0 1)

Kozyura, Gennady Volodimirovich

Slovensky Dennik, 1994

4b3/8/4p3/8/3Q4/3N4/3pp2K/3k4

#2

3 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ba4
      • 2.Qxa4#
    • 1...Bh5
      • 2.Qa4#
    • 1...Bg6
      • 2.Qa4#
    • 1...Bf7
      • 2.Qa4#
  • Tries
    • 1.Se1?
      • threat
        • 2.Qa1#
      • 1...Kc1
        • 2.Qa1#
      • 1...Kxe1
        • 2.Qg1#
      • 1...Bg6!
  • Keys
    • 1.Qc4!
      • threat
        • 2.Qb3#
      • 1...e1Q
        • 2.Sb2#
      • 1...e1S
        • 2.Sb2#
        • 2.Sf2#
      • 1...e1B
        • 2.Sb2#
      • 1...e1R
        • 2.Sb2#
        • 2.Sf2#
      • 1...Ba4
        • 2.Qxa4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(e);N_GUARD::QAB(C),XB(e)
    • B(e);N_GUARD::QAB(C)
  • Tries
    • Try
      • S(B);P_PINP(b)
      • Threat
        • QAR(C)
      • Vars
        • K(a);N_SPINP(b),P-FLIGHT::QAR2(C)
        • K(a);N_SPINP(b),OGATEB,P-FLIGHT,XS(B)::QAR2(C)
      • Refutation
        • B(e);
  • Actual
    • Q(C);
    • Threat
      • QAB(C)
    • Vars
      • P(c);SBLOCK::S(B)
      • B(e);N_GUARD::QAB(C),XB(e)
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