MESON Chess Problem Database

Problem Display
PID: 152295 (3R4/2r2q2/4r3/1n2P3/2P2k2/3PNNp1/6K1/2BB4 w - - 0 1)

Weiss, Berthold

Good Companions (October), 1915

3R4/2r2q2/4r3/1n2P3/2P2k2/3PNNp1/6K1/2BB4

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Sa3
      • 2.Rd4#
    • 1...Sd4
      • 2.Rxd4#
    • 1...Sa7
      • 2.Rd4#
  • Tries
    • 1.Sg4+?
      • 1...Kf5
        • 2.Sh4#
      • 1...Kxg4!
    • 1.Sf5+?
      • 1...Kg4
        • 2.S3d4#
        • 2.S3h4#
      • 1...Kxf5!
  • Keys
    • 1.Sh4!
      • threat
        • 2.Sg4#
      • 1...Kxe5
        • 2.Sg4#
      • 1...Kg5
        • 2.Sef5#
      • 1...Rxe5
        • 2.Sd5#
      • 1...Rxc4
        • 2.Sxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • S(c);N_GUARD::R(I)
    • S(c);N_GUARD::R(I),XS(c)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(b);P-FLIGHT::S(F)
      • Refutation
        • K(b);P-FLIGHT,XS(E)
    • Try
      • S(E);CHECK
      • Refutation
        • K(b);P-FLIGHT,XS(E)
  • Actual
    • S(F);
    • Threat
      • B(A)+S(E)
    • Vars
      • K(b);S_FLIGHT,XP(H)::S(E)
      • K(b);S_FLIGHT::B(A)+S(E)
      • R(d);SBLOCK,XP(H)::B(A)+S(E),DCHECK
      • R(e);XP(G)::B(A)+S(E),XR(e)
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