MESON Chess Problem Database

Problem Display
PID: 109133 (3b4/2p1r3/1pPnkpNR/1P6/2p2PN1/B1Q1nK1B/8/8 w - - 0 1)

Paradis, Jean-Maurice

La Presse, 1932

3b4/2p1r3/1pPnkpNR/1P6/2p2PN1/B1Q1nK1B/8/8

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Sxf6#
    • 1...Kf5
      • 2.Sxe3#
      • 2.Qxf6#
  • Tries
    • 1.Sxe3+?
      • 1...Sf5
        • 2.Qxc4#
      • 1...f5
        • 2.Se5#
        • 2.Sh8#
      • 1...Kf7!
    • 1.Sf8+?
      • 1...Kd5
        • 2.Sxf6#
        • 2.Qd2#
      • 1...Kf5
        • 2.Sxe3#
        • 2.Rh5#
        • 2.Rxf6#
        • 2.Qxf6#
      • 1...Kf7!
  • Keys
    • 1.Sh8!
      • threat
        • 2.Qe5#
      • 1...Kd5
        • 2.Sxf6#
      • 1...Kf5
        • 2.Sxe3#
        • 2.Rxf6#
        • 2.Qxf6#
      • 1...Sf7
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(e);S_FLIGHT::S(F),XP(f)
  • Tries
    • Try
      • S(F);CHECK,XS(a)
      • Vars
        • S(d);P_SPINS(d)::QAB(B),XP(b)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • S(I);CHECK,P_PINP(f)
      • Refutation
        • K(e);N_SPINP(f),S_FLIGHT
  • Actual
    • S(I);P_PINP(f)
    • Threat
      • QAR1(B)
    • Vars
      • K(e);N_SPINP(f),S_FLIGHT::S(F),XP(f)
      • S(d);N_GUARD::B(D)+S(F),XS(a)
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