MESON Chess Problem Database

Problem Display
PID: 265350 (1Qn5/8/b2p4/5kNK/p1p2p2/8/2P5/BB6 w - - 0 1)

Bottacchi, Antonio

Realismo e romanticismo nell'arte problemistica di Antonio B, 2005

1Qn5/8/b2p4/5kNK/p1p2p2/8/2P5/BB6

#2

6 + 7

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sb6
      • 2.Qf8#
    • 1...Sa7
      • 2.Qf8#
    • 1...Se7
      • 2.Qf8#
    • 1...d5
      • 2.Qe5#
  • Tries
    • 1.Qxd6?
      • threat
        • 2.Qc5#
        • 2.Qe5#
        • 2.Qf8#
        • 2.Qd5#
        • 2.Qe6#
        • 2.Qf6#
        • 2.Qg6#
        • 2.Qd7#
        • 2.c3#
      • 1...Bb7
        • 2.Qe5#
        • 2.Qf8#
        • 2.Qe6#
        • 2.Qf6#
        • 2.Qg6#
        • 2.Qd7#
      • 1...Bb5
        • 2.Qc5#
        • 2.Qe5#
        • 2.Qf8#
        • 2.Qd5#
        • 2.Qe6#
        • 2.Qf6#
        • 2.Qg6#
        • 2.c3#
      • 1...Sb6
        • 2.Qe5#
        • 2.Qf8#
        • 2.Qe6#
        • 2.Qf6#
        • 2.Qg6#
        • 2.c3#
      • 1...Se7
        • 2.Qe5#
        • 2.Qe6#
        • 2.Qf6#
        • 2.Qd7#
        • 2.c3#
      • 1...c3
        • 2.Qe6#
      • 1...f3
        • 2.Qe5#
        • 2.Qf8#
        • 2.Qf6#
        • 2.c3#
      • 1...Sxd6!
    • 1.Qc7?
      • threat
        • 2.Qd7#
        • 2.Qf7#
        • 2.Qh7#
      • 1...f3
        • 2.Qf7#
      • 1...Bb5
        • 2.Qf7#
        • 2.Qh7#
      • 1...Sb6
        • 2.Qf7#
        • 2.Qh7#
      • 1...Se7
        • 2.Qd7#
      • 1...c3!
    • 1.Qb5+?
      • 1...d5
        • 2.Qd7#
        • 2.Qxd5#
      • 1...Bxb5!
  • Keys
    • 1.Qb3!
      • threat
        • 2.Qh3#
      • 1...axb3
        • 2.cxb3#
      • 1...cxb3
        • 2.c4#
      • 1...c3
        • 2.Qe6#
      • 1...f3
        • 2.Qxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • S(g);OGATE::QAR(F)
    • P(f);OGATE::QAR1(F)
  • Tries
    • Try
      • Q(F);XP(f)
      • Threat
        • DUALS(9)
      • Vars
        • P(b);::QAB1(F)
      • Refutation
        • S(g);XQ(F)
    • Try
      • Q(F);
      • Threat
        • DUALS(3)
      • Vars
        • P(c);::QAR2(F)
        • S(g);::QAB(F)
      • Refutation
        • P(b);
    • Try
      • Q(F);CHECK
      • Refutation
        • B(e);XQ(F)
  • Actual
    • Q(F);
    • Threat
      • QAB(F)
    • Vars
      • P(a);OGATE,XQ(F)::B(B)+P(C),XP(a)
      • P(b);OGATE,XQ(F)::B(B)+P(C)
      • P(b);OGATE::QAB1(F)
      • P(c);OGATEB::QAR2(F),XP(c)
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