MESON Chess Problem Database

Problem Display
PID: 34308 (4N3/3p2Bk/4B1p1/1Q1p4/8/4p3/4K3/8 w - - 0 1)

Ivanov, Vadim Aleksandrovich

Die Schwalbe, 2001

4N3/3p2Bk/4B1p1/1Q1p4/8/4p3/4K3/8

#2

5 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...g5
      • 2.Qd3#
      • 2.Qb1#
  • Tries
    • 1.Bxd5?
      • 1...g5
        • 2.Qd3#
        • 2.Qb1#
      • 1...d6!
    • 1.Qxd5?
      • threat
        • 2.Bg8#
        • 2.Qh1#
      • 1...g5
        • 2.Bf5#
        • 2.Qe4#
        • 2.Qd3#
        • 2.Qf5#
      • 1...dxe6!
  • Keys
    • 1.Qb7!
      • 1...dxe6
        • 2.Sf6#
      • 1...g5
        • 2.Qb1#
      • 1...d4
        • 2.Qh1#
      • 1...d6
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);XP(b)
      • Refutation
        • P(d);
    • Try
      • Q(B);XP(b)
      • Threat
        • DUALS(2)
      • Refutation
        • P(d);XB(C)
  • Actual
    • Q(B);
    • Vars
      • P(d);XB(C)::S(E)
      • P(c);OGATEB::QAB(B)
      • P(b);OGATE::QAR(B)
      • P(d);::S(E)
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