MESON Chess Problem Database

Problem Display
PID: 58199 (6R1/8/2Q5/3p1N2/4k3/8/8/3KN3 w - - 0 1)

Sokolov, Vladimir Viktorovich

Scacco!, 1997

6R1/8/2Q5/3p1N2/4k3/8/8/3KN3

#2

5 + 2

5454 Near Snap 2007

SOLUTION

  • SOUND
  • Tries
    • 1.Qxd5+?
      • 1...Kf4
        • 2.Sg2#
        • 2.Sd3#
      • 1...Kxd5!
  • Keys
    • 1.Sd3!
      • 1...Kxd3
        • 2.Qc2#
      • 1...Kf3
        • 2.Qxd5#
      • 1...Kxf5
        • 2.Qg6#

Anticipated by 2576(1871), 167298(1879), 4559(1879), 51071(1880), 182361(1906), 194195(1917), 195099(1918), 22068(1924), 56805(1925), 205551(1925), 231139(1927), 60792(1929)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);CHECK,XP(b)
      • Refutation
        • K(a);S_FLIGHT,XQ(D)
  • Actual
    • S(B);
    • Vars
      • K(a);N_SPINP(b),OGATEB,S_FLIGHT,XS(B)::QAB1(D)
      • K(a);S_FLIGHT::QAB(D),XP(b)
      • K(a);N_SPINP(b),OGATEB,S_FLIGHT,XS(C)::QAB1(D)
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