MESON Chess Problem Database

Problem Display
PID: 232988 (8/8/8/8/2P5/4K1Q1/pk6/R1N5 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Kudesnik, 2002

8/8/8/8/2P5/4K1Q1/pk6/R1N5

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Ke2?
      • 1...Kc2
        • 2.Qb3#
      • 1...Kxa1!
    • 1.Qb8+?
      • 1...Kc2
        • 2.Qb3#
      • 1...Ka3
        • 2.Rxa2#
        • 2.Qb3#
      • 1...Kc3
        • 2.Qb3#
      • 1...Kxa1!
  • Keys
    • 1.Qe1!
      • 1...Kxa1
        • 2.Sd3#
      • 1...Kc2
        • 2.Qd2#
      • 1...Ka3
        • 2.Rxa2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(b);P-FLIGHT::QAB1(D)
      • Refutation
        • K(b);S_FLIGHT,XR(A)
    • Try
      • Q(D);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(D)
        • K(b);S_FLIGHT::QAR1(D)
      • Refutation
        • K(b);S_FLIGHT,XR(A)
  • Actual
    • Q(D);
    • Vars
      • K(b);S_FLIGHT,XR(A)::QAR(D)+S(B)
      • K(b);P-FLIGHT::QAR1(D)
      • K(b);P_SPINP(a),S_FLIGHT::R1(A),XP(a)
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