MESON Chess Problem Database

Problem Display
PID: 141871 (Q4K2/2pp2B1/R1N1B3/2k5/2P5/8/8/8 w - - 0 1)

Velimirovic, Milan

The Problemist, 1999

Q4K2/2pp2B1/R1N1B3/2k5/2P5/8/8/8

#2

7 + 3

6490 yacpdb 2011

SOLUTION

  • SOUND
  • Sets
    • 1...d6
      • 2.Bd4#
      • 2.Qa7#
  • Tries
    • 1.Ra5+?
      • 1...Kb6
        • 2.Bd4#
        • 2.Rb5#
        • 2.Qa6#
        • 2.c5#
      • 1...Kd6!
    • 1.Qb7?
      • threat
        • 2.Qb4#
      • 1...dxc6
        • 2.Rxc6#
      • 1...Kd6!
  • Keys
    • 1.Qd8!
      • 1...Kd6
        • 2.Qe7#
      • 1...dxc6
        • 2.Qe7#
      • 1...dxe6
        • 2.Qd4#
      • 1...d5
        • 2.Qxd5#
      • 1...d6
        • 2.Bd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • QAB1(F)
      • Vars
        • P(c);OGATE,XS(C)::R1(B),XP(c)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(F);
    • Vars
      • K(a);P_SPINP(c),S_FLIGHT::QAB1(F)
      • P(c);N_GUARD,XS(C)::QAB(F)
      • P(c);OGATE,XB(D)::QAB1(F)
      • P(c);OGATE::QAR1(F),XP(c)
      • P(c);::B(E)
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