MESON Chess Problem Database

Problem Display
PID: 213428 (1b3K2/2B5/2p2p2/1pQ5/3pk3/7R/2N5/8 w - - 0 1)

Uhler, Ekkehard

Badische Neueste Nachrichten, 1980

1b3K2/2B5/2p2p2/1pQ5/3pk3/7R/2N5/8

#2

5 + 6

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Re3#
    • 1...f5
      • 2.Qxd4#
      • 2.Qe5#
      • 2.Qxc6#
  • Tries
    • 1.Bxb8?
      • 1...d3
        • 2.Re3#
      • 1...f5
        • 2.Qxd4#
        • 2.Qe5#
        • 2.Qxc6#
      • 1...b4!
    • 1.Rf3?
      • threat
        • 2.Qf5#
        • 2.Qxc6#
      • 1...Bxc7
        • 2.Qf5#
      • 1...f5
        • 2.Qxf5#
        • 2.Qxc6#
      • 1...Kxf3!
  • Keys
    • 1.Se3!
      • threat
        • 2.Qf5#
      • 1...Kd3
        • 2.Qc2#
      • 1...dxe3
        • 2.Rxe3#
      • 1...d3
        • 2.Qb4#
      • 1...f5
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(a);N_GUARD::R1(B)
  • Tries
    • Try
      • B(D);XB(f)
      • Vars
        • P(a);N_GUARD::R1(B)
      • Refutation
        • P(c);
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(f);XB(D)::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT,XR(B)
  • Actual
    • S(A);
    • Threat
      • QAB1(C)
    • Vars
      • K(b);S_FLIGHT::QAB1(C)
      • P(a);OGATE,XS(A)::R1(B),XP(a)
      • P(a);OGATEB,SBLOCK::QAR(C)
      • P(e);::QAB1(C),XP(e)
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