MESON Chess Problem Database

Problem Display
PID: 104591 (2B5/3Q4/8/8/2k1N3/P4P2/8/2K5 w - - 0 1)

Stojnic, Dragan

Mezija, 1999

2B5/3Q4/8/8/2k1N3/P4P2/8/2K5

#2

6 + 1

5454 Near Snap 2009
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sc5?
      • 1...Kc3
        • 2.Qd3#
      • 1...Kxc5!
    • 1.Qd6?
      • 1...Kb5
        • 2.Qa6#
      • 1...Kb3!
  • Keys
    • 1.Qa7!
      • 1...Kb3
        • 2.Be6#
      • 1...Kd3
        • 2.Ba6#
      • 1...Kb5
        • 2.Qa6#
      • 1...Kd5
        • 2.Qc5#

Anticipated by 2475(0000), 5102(1899), 223485(1926), 164208(1988), 157940(1993)

This anticipates 169618(2002), 153216(2011)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Vars
        • K(a);P-FLIGHT::QAR1(E)
      • Refutation
        • K(a);P-FLIGHT,XS(D)
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(E);
    • Vars
      • K(a);S_FLIGHT::B(F)
      • K(a);S_FLIGHT::QAB1(E)
      • K(a);S_FLIGHT::QAR1(E)
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