MESON Chess Problem Database

Problem Display
PID: 237028 (K6B/8/2pp4/2k2B2/Q7/8/8/8 w - - 0 1)

Shanshin, Valery Yurevich

Smena, 2000

K6B/8/2pp4/2k2B2/Q7/8/8/8

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qd4#
  • Tries
    • 1.Ka7?
      • 1...Kd5
        • 2.Qd4#
      • 1...d5!
    • 1.Kb7?
      • 1...Kd5
        • 2.Qxc6#
        • 2.Qd4#
      • 1...d5!
    • 1.Bd3?
      • threat
        • 2.Qd4#
        • 2.Qa5#
      • 1...Kd5
        • 2.Qc4#
      • 1...Kb6
        • 2.Qa7#
      • 1...d5!
    • 1.Qb4+?
      • 1...Kd5
        • 2.Qd4#
      • 1...Kxb4!
  • Keys
    • 1.Bc3!
      • 1...Kd5
        • 2.Qd4#
      • 1...Kb6
        • 2.Qa5#
      • 1...d5
        • 2.Qb4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR1(A)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • P(c);
    • Try
      • K(C);S_FLIGHT
      • Refutation
        • P(c);
    • Try
      • B(B);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::QAB1(A)
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • P(c);
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT,XQ(A)
  • Actual
    • B(D);
    • Vars
      • K(a);P-FLIGHT::QAR1(A)
      • K(a);S_FLIGHT::QAB1(A)
      • P(c);SBLOCK::QAB1(A)
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