MESON Chess Problem Database

Problem Display
PID: 7124 (8/pp2P3/3p4/3kNK2/2p1p3/1q3p2/1Pp1BB2/Q7 w - - 0 1)

Righi, Mario

L'Italia Scacchistica, 1998

8/pp2P3/3p4/3kNK2/2p1p3/1q3p2/1Pp1BB2/Q7

#2

7 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qxb2
      • 2.Bxc4#
    • 1...Qa3
      • 2.Bxc4#
    • 1...Qb6
      • 2.Bxc4#
  • Tries
    • 1.Qa5+?
      • 1...Qb5
        • 2.Bxc4#
        • 2.Qd2#
        • 2.Qxb5#
      • 1...b5!
  • Keys
    • 1.Qxa7!
      • threat
        • 2.Qd4#
      • 1...Qxb2
        • 2.Bxc4#
      • 1...dxe5
        • 2.Qc5#
      • 1...Qc3
        • 2.Qxb7#
      • 1...Qd3
        • 2.Qxb7#
      • 1...Qe3
        • 2.Bxc4#
      • 1...Qb6
        • 2.Bxc4#
      • 1...e3
        • 2.Bxf3#
      • 1...b6
        • 2.Qb7#
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • Q(b);N_GUARD,XP(B)::B(C),XP(d)
    • Q(b);N_GUARD::B(C),XP(d)
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • P(i);P_SPINP(i)
  • Actual
    • Q(A);XP(h)
    • Threat
      • QAR1(A)
    • Vars
      • Q(b);N_GUARD,XP(B)::B(C),XP(d)
      • P(g);N_GUARD,XS(E)::QAR1(A)
      • Q(b);N_GUARD::QAB(A),XP(i)
      • Q(b);N_GUARD::B(C),XP(d)
      • P(e);OGATEB::B(C),XP(c)
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