MESON Chess Problem Database

Problem Display
PID: 110294 (3KR3/2Q1N3/1p5p/8/1p1k1pn1/6N1/2P1PR1b/4r3 w - - 0 1)

Loepert, Fritz

Mate, 1982

3KR3/2Q1N3/1p5p/8/1p1k1pn1/6N1/2P1PR1b/4r3

#2

8 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qxf4#
    • 1...Se3
      • 2.Rxf4#
  • Tries
    • 1.c3+?
      • 1...Ke3
        • 2.Qxf4#
      • 1...bxc3!
    • 1.e3+?
      • 1...Kxe3
        • 2.Qxf4#
        • 2.Qxb6#
      • 1...Sxe3
        • 2.Rd2#
        • 2.Rxf4#
      • 1...fxe3
        • 2.Rf4#
      • 1...Rxe3!
  • Keys
    • 1.e4!
      • threat
        • 2.Sef5#
      • 1...Ke3
        • 2.Qxb6#
      • 1...Rxe4
        • 2.Sgf5#
      • 1...fxe4 ep
        • 2.Rf4#
      • 1...Se3
        • 2.Rd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(d);S_FLIGHT::QAB1(E),XP(e)
    • S(f);SBLOCK::R(C),XP(e)
  • Tries
    • Try
      • P(A);CHECK
      • Vars
        • K(d);S_FLIGHT::QAB1(E),XP(e)
      • Refutation
        • P(c);XP(A)
    • Try
      • P(B);CHECK
      • Vars
        • P(e);SBLOCK,XP(B)::R(C)
      • Refutation
        • R(a);XP(B)
  • Actual
    • P(B);
    • Threat
      • S(F)
    • Vars
      • K(d);S_FLIGHT::QAB(E),XP(g)
      • R(a);SBLOCK,XP(B)::S(D)
      • P(e);EP,OGATEB,XP(B)::R(C)
      • S(f);SBLOCK::R(C)
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