MESON Chess Problem Database

Problem Display
PID: 233031 (8/8/4pp2/2Q2B2/5k2/4R3/8/4K3 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Kudesnik, 2013

8/8/4pp2/2Q2B2/5k2/4R3/8/4K3

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Rf3+?
      • 1...Kxf3
        • 2.Qf2#
      • 1...Kg5!
    • 1.Re4+?
      • 1...Kf3
        • 2.Qf2#
      • 1...Kg3
        • 2.Qf2#
      • 1...Kg5!
    • 1.Rxe6?
      • 1...Kf3
        • 2.Qf2#
      • 1...Kg3
        • 2.Qf2#
      • 1...Kg5!
  • Keys
    • 1.Rg3!
      • 1...Kxg3
        • 2.Qf2#
      • 1...exf5
        • 2.Qe3#
      • 1...e5
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • K(a);P-FLIGHT,XR(B)::QAR1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);XP(b)
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(B);
    • Vars
      • K(a);S_FLIGHT,XR(B)::QAB1(C)
      • P(b);SBLOCK,XB(D)::QAB1(C)
      • P(b);SBLOCK::QAR2(C)
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