MESON Chess Problem Database

Problem Display
PID: 207465 (8/2p1P3/2P2PN1/pBkN4/P1P3R1/2R4p/2K4B/8 w - - 0 1)

Ernst, Erich

Badische Neueste Nachrichten, 1986

8/2p1P3/2P2PN1/pBkN4/P1P3R1/2R4p/2K4B/8

#2

12 + 4

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Se3?
      • 1...Kb4
        • 2.c5#
      • 1...Kb6!
    • 1.Sb4?
      • 1...Kxb4
        • 2.c5#
      • 1...Kb6
        • 2.Bg1#
      • 1...axb4!
    • 1.Sb6?
      • 1...Kb4
        • 2.c5#
      • 1...Kxb6
        • 2.Bg1#
      • 1...cxb6!
    • 1.Sxc7?
      • 1...Kb4
        • 2.Sa6#
        • 2.Bd6#
        • 2.c5#
      • 1...Kb6!
    • 1.Sgf4?
      • threat
        • 2.Sd3#
        • 2.Se6#
      • 1...Kd4
        • 2.Sd3#
        • 2.Se6#
      • 1...Kd6!
    • 1.Bf4?
      • 1...Kd4
        • 2.Be3#
        • 2.Bd6#
      • 1...h2!
  • Keys
    • 1.Sdf4!
      • 1...Kb4
        • 2.Sd3#
      • 1...Kd4
        • 2.Se6#
      • 1...Kb6
        • 2.Bg1#
      • 1...Kd6
        • 2.c5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(H);
      • Vars
        • K(c);OGATE,S_FLIGHT::R(F)+P(E)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(H);
      • Vars
        • K(c);OGATE,S_FLIGHT,XS(H)::R(F)+P(E)
        • K(c);S_FLIGHT::B(B)
      • Refutation
        • P(b);XS(H)
    • Try
      • S(H);
      • Vars
        • K(c);OGATE,S_FLIGHT::R(F)+P(E)
        • K(c);S_FLIGHT,XS(H)::B(B)
      • Refutation
        • P(d);XS(H)
    • Try
      • S(H);XP(d)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • S(K);
      • Threat
        • DUALS(2)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(B);
      • Refutation
        • P(a);
  • Actual
    • S(H);
    • Vars
      • K(c);S_FLIGHT::S(H)
      • K(c);S_FLIGHT::R(F)+S(H),DCHECK
      • K(c);S_FLIGHT::B(B)
      • K(c);OGATE,S_FLIGHT::P(E)
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