MESON Chess Problem Database

Problem Display
PID: 102431 (4R3/6p1/4P2b/1K1kPN2/4p1p1/7B/4NP1p/B3R2r w - - 0 1)

Lies, Heinz

Trilling, Anton AC

L'Echiquier, 1936-1938

4R3/6p1/4P2b/1K1kPN2/4p1p1/7B/4NP1p/B3R2r

#2

10 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be3
      • 2.Sxe3#
    • 1...Bf4
      • 2.Sxf4#
    • 1...e3
      • 2.Bg2#
    • 1...g3
      • 2.Se7#
    • 1...g5
      • 2.Se3#
  • Tries
    • 1.Sxh6?
      • threat
        • 2.Sf4#
      • 1...e3
        • 2.Bg2#
      • 1...g5!
    • 1.Sxg7?
      • threat
        • 2.Rd8#
      • 1...Bxg7
        • 2.Sf4#
      • 1...e3
        • 2.Bg2#
      • 1...Bg5!
    • 1.Bxg4?
      • threat
        • 2.Se7#
      • 1...e3
        • 2.Bf3#
      • 1...Bg5!
    • 1.Rd1+?
      • 1...Bd2
        • 2.Sf4#
        • 2.Se3#
        • 2.Rxd2#
      • 1...Rxd1!
  • Keys
    • 1.f4!
      • threat
        • 2.Sc3#
        • 2.Se3#
      • 1...Bxf4
        • 2.Sxf4#
      • 1...exf4 ep
        • 2.Sc3#
      • 1...gxf4 ep
        • 2.Se7#
      • 1...e3
        • 2.Sc3#
        • 2.Bg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • B(f);N_GUARD::S(H),XB(f)
    • B(f);N_GUARD::S(C),XB(f)
    • P(c);OGATEB::B(E)
    • P(d);::S(H)
    • P(g);S_CUTB(f)::S(H)
  • Tries
    • Try
      • S(H);XB(f)
      • Threat
        • S(C)
      • Vars
        • P(c);OGATEB::B(E)
      • Refutation
        • P(g);
    • Try
      • S(H);XP(g)
      • Threat
        • R(J)
      • Vars
        • B(f);N_GUARD,XS(H)::S(C)
        • P(c);OGATEB::B(E)
      • Refutation
        • B(f);
    • Try
      • B(E);XP(d)
      • Threat
        • S(H)
      • Vars
        • P(c);OGATEB::B(E)
      • Refutation
        • B(f);
    • Try
      • R(B);CHECK
      • Refutation
        • R(a);XR(B)
  • Actual
    • P(D);
    • Threat
      • DUALS(2)
    • Vars
      • B(f);XP(D)::S(C),XB(f)
      • P(c);EP,XP(D)::S(C)
      • P(d);EP,XP(D)::S(H)
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