MESON Chess Problem Database

Problem Display
PID: 85367 (8/2K2R1p/8/4k2N/2Q5/8/8/7b w - - 0 1)

Pilchenko, Aleksandr

Zheltonozhko, Vladimir Ivanovich

Smena, 1994

8/2K2R1p/8/4k2N/2Q5/8/8/7b

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sg3?
      • threat
        • 2.Rf5#
      • 1...Be4
        • 2.Qxe4#
      • 1...Bd5!
    • 1.Qd3?
      • threat
        • 2.Re7#
      • 1...Ke6
        • 2.Qf5#
      • 1...Be4
        • 2.Qd6#
      • 1...Bd5!
    • 1.Qf4+?
      • 1...Ke6
        • 2.Qf5#
      • 1...Kd5!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Sd3#
      • 1...Be4
        • 2.Qc3#
      • 1...Bd5
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • R1(D)
      • Vars
        • B(a);N_GUARD::QAR1(A),XB(a)
      • Refutation
        • B(a);
    • Try
      • Q(A);
      • Threat
        • R(D)
      • Vars
        • K(b);P-FLIGHT::QAB1(A)
        • B(a);SBLOCK::QAB1(A)
      • Refutation
        • B(a);
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • B(a);SBLOCK::QAB(A)
      • B(a);N_GUARD::QAR1(A),XB(a)
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