MESON Chess Problem Database

Problem Display
PID: 239228 (4R3/8/2p3N1/3k4/8/8/2Q2K2/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

L'Italia Scacchistica, 2004

4R3/8/2p3N1/3k4/8/8/2Q2K2/8

#2

4 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Rd8#
  • Tries
    • 1.Sf4+?
      • 1...Kd4
        • 2.Re4#
      • 1...Kd6!
    • 1.Re6?
      • 1...Kd4
        • 2.Rd6#
      • 1...c5
        • 2.Qe4#
      • 1...Kxe6!
    • 1.Qxc6+?
      • 1...Kd4
        • 2.Rd8#
      • 1...Kxc6!
  • Keys
    • 1.Se5!
      • 1...Kd4
        • 2.Qc4#
      • 1...Kd6
        • 2.Qxc6#
      • 1...c5
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::R(D)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(a);P-FLIGHT::R1(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(D);
      • Vars
        • K(a);P-FLIGHT::R(D)
        • P(b);SBLOCK::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT,XR(D)
    • Try
      • Q(A);CHECK,XP(b)
      • Vars
        • K(a);P-FLIGHT::R(D)
      • Refutation
        • K(a);S_FLIGHT,XQ(A)
  • Actual
    • S(C);
    • Vars
      • K(a);P-FLIGHT::QAR1(A)
      • K(a);P-FLIGHT::QAR1(A),XP(b)
      • P(b);SBLOCK::QAR2(A)
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