MESON Chess Problem Database

Problem Display
PID: 239230 (8/2p2Q2/K2p2N1/2k5/8/2P5/8/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

L'Italia Scacchistica, 2004

8/2p2Q2/K2p2N1/2k5/8/2P5/8/8

#2

4 + 3

15148 Sadier Collection 2021
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...d5
      • 2.Qxc7#
  • Tries
    • 1.Sf4?
      • threat
        • 2.Qd5#
        • 2.Qxc7#
      • 1...d5
        • 2.Qxd5#
        • 2.Qxc7#
      • 1...c6
        • 2.Sd3#
      • 1...Kc6!
    • 1.Se5?
      • threat
        • 2.Qc4#
      • 1...d5
        • 2.Qxc7#
        • 2.Qe7#
        • 2.Qf8#
      • 1...dxe5!
    • 1.Se7?
      • threat
        • 2.Qd5#
      • 1...d5
        • 2.Qxd5#
      • 1...c6!
  • Keys
    • 1.Sf8!
      • 1...Kc6
        • 2.Qc4#
      • 1...d5
        • 2.Qxc7#
      • 1...c6
        • 2.Sd7#

Anticipated by 229425(2003)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::QAR2(D),XP(c)
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);SBLOCK::S(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(C);
      • Threat
        • QAR1(D)
      • Refutation
        • P(b);XS(C)
    • Try
      • S(C);
      • Threat
        • QAR1(D)
      • Vars
        • P(b);::QAR1(D),XP(b)
      • Refutation
        • P(c);
  • Actual
    • S(C);
    • Vars
      • K(a);P-FLIGHT::QAR2(D)
      • P(b);SBLOCK::QAR2(D),XP(c)
      • P(c);SBLOCK::S(C)
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