MESON Chess Problem Database

Problem Display
PID: 75649 (6nK/1r4Pb/p3p1PB/4PpNQ/nP1qrk2/p2Pp2p/1PP1p2P/8 w - f5 0 1)

Batori, Alberto

Retrograde Analysis, 1916

6nK/1r4Pb/p3p1PB/4PpNQ/nP1qrk2/p2Pp2p/1PP1p2P/8

#2

12 + 14

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe5
      • 2.Sxh3#
      • 2.Sxe6#
      • 2.Qf3#
      • 2.Qh4#
    • 1...Rxe5
      • 2.Sxh3#
      • 2.Sxe6#
      • 2.Qf3#
      • 2.Qh4#
    • 1...Sf6
      • 2.Sf3#
      • 2.Sf7#
    • 1...Se7
      • 2.Sf3#
      • 2.Sf7#
  • Keys
    • 1.exf5 ep!
      • threat
        • 2.Sxh3#
        • 2.Sxe6#
      • 1...Ke5
        • 2.Sxe4#
      • 1...Kf5
        • 2.Sxe4#
        • 2.Sxh7#
      • 1...Sxh6
        • 2.Sxh3#
      • 1...e5
        • 2.Sxh3#
        • 2.Se6#
        • 2.Qf3#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Actual
    • P(F);EP,XP(i)
    • Threat
      • DUALS(2)
    • Vars
      • K(h);S_FLIGHT::QAR(H)+S(G),XR(g)
      • S(n);XB(J)::S(G),XP(d)
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