MESON Chess Problem Database

Problem Display
PID: 210141 (3R2Q1/4pNP1/2PbP2P/Bp1kN3/1P1p3R/3p3B/P2P1K2/8 w - - 0 1)

Ernst, Erich

Badische Neueste Nachrichten, 1988

3R2Q1/4pNP1/2PbP2P/Bp1kN3/1P1p3R/3p3B/P2P1K2/8

#2

15 + 6

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sxd3?
      • 1...Kxc6
        • 2.Bg2#
      • 1...Kc4!
    • 1.Sf3?
      • 1...Kc4
        • 2.Rxd4#
      • 1...Kxc6!
    • 1.Sg6?
      • 1...Kxc6
        • 2.Bg2#
      • 1...Kc4!
  • Keys
    • 1.Sg4!
      • 1...Kc4
        • 2.Se3#
      • 1...Ke4
        • 2.Sf6#
      • 1...Kxc6
        • 2.Bg2#
      • 1...Kxe6
        • 2.Sxd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(H);XP(a)
      • Vars
        • K(d);N_SPINB(e),S_FLIGHT,XP(I)::B(D)
      • Refutation
        • K(d);N_SPINB(e),P_SPINP(b),S_FLIGHT
    • Try
      • S(H);
      • Vars
        • K(d);N_SPINB(e),P_SPINP(b),S_FLIGHT::R1(F),XP(b)
      • Refutation
        • K(d);N_SPINB(e),S_FLIGHT,XP(I)
    • Try
      • S(H);
      • Vars
        • K(d);N_SPINB(e),S_FLIGHT,XP(I)::B(D)
      • Refutation
        • K(d);N_SPINB(e),P_SPINP(b),S_FLIGHT
  • Actual
    • S(H);
    • Vars
      • K(d);N_SPINB(e),S_FLIGHT::S(H)
      • K(d);N_SPINB(e),S_FLIGHT::R(F)+S(H),DCHECK
      • K(d);N_SPINB(e),S_FLIGHT,XP(I)::B(D)
      • K(d);N_SPINB(e),S_FLIGHT,XP(J)::QAB(O)+S(L),XB(e)
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