MESON Chess Problem Database

Problem Display
PID: 276247 (2B5/4N1n1/1B1pP3/K3k1P1/2p1N2R/1p4P1/3n1rb1/8 w - - 0 1)

Pries, Alfred

Die Schwalbe, 1933

2B5/4N1n1/1B1pP3/K3k1P1/2p1N2R/1p4P1/3n1rb1/8

#2

9 + 8

SOLUTION

  • SOUND
  • Tries
    • 1.Sxd2?
      • threat
        • 2.Sxc4#
        • 2.Bd4#
      • 1...Sxe6
        • 2.Sxc4#
      • 1...d5
        • 2.Bc7#
      • 1...Rf4
        • 2.gxf4#
      • 1...Bf1
        • 2.Bd4#
        • 2.Re4#
      • 1...Be4
        • 2.Sxc4#
        • 2.Rxe4#
      • 1...Bd5
        • 2.Bd4#
      • 1...Sf5
        • 2.Sxc4#
      • 1...c3
        • 2.Sc4#
        • 2.Bd4#
      • 1...Rxd2!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Bd4#
      • 1...Sxe6
        • 2.Sd7#
      • 1...d5
        • 2.Bc7#
      • 1...Rf4
        • 2.gxf4#
      • 1...Be4
        • 2.Sg4#
      • 1...Sf3
        • 2.Re4#
      • 1...Se4
        • 2.Sg4#
      • 1...Sf5
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);XS(a)
      • Threat
        • DUALS(2)
      • Vars
        • S(h);XP(G)::S(B),XP(e)
        • P(g);OGATEB::B(F)
        • R(b);OGATE::P(A),XR(b)
        • B(c);::B(F)
        • S(h);::S(B),XP(e)
      • Refutation
        • R(b);XS(B)
  • Actual
    • S(B);
    • Threat
      • B(F)
    • Vars
      • S(h);SBLOCK,XP(G)::S(B)
      • P(g);OGATEB::B(F)
      • R(b);OGATE::P(A),XR(b)
      • B(c);SBLOCK::S(B)
      • S(a);N_GUARD,S_CUTB(c)::R1(C)
      • S(a);SBLOCK::S(B)
      • S(h);SBLOCK::S(H)
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Developed and maintained by Brian Stephenson.
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