MESON Chess Problem Database

Problem Display
PID: 232899 (1RK2b2/8/1Nk5/2p5/8/1Q6/8/8 w - - 0 1)

Dikusarov, Andrey Nikolayovich

Kudesnik, 2006

1RK2b2/8/1Nk5/2p5/8/1Q6/8/8

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Qa4#
  • Tries
    • 1.Qe6+?
      • 1...Bd6
        • 2.Qd7#
        • 2.Qe8#
      • 1...Kb5!
    • 1.Qd3?
      • threat
        • 2.Qd7#
      • 1...c4
        • 2.Qd5#
      • 1...Bd6!
    • 1.Qf3+?
      • 1...Kd6
        • 2.Qf6#
      • 1...Kb5!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Qd7#
      • 1...Kb5
        • 2.Qa4#
      • 1...c4
        • 2.Qd5#
      • 1...Bd6
        • 2.Qa4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(c);SBLOCK::QAB(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • P(a);::QAB1(A)
      • Refutation
        • B(c);
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • K(b);S_FLIGHT::QAB1(A)
      • P(a);::QAB1(A)
      • B(c);SBLOCK::QAB(A)
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