MESON Chess Problem Database

Problem Display
PID: 187635 (8/Q2p4/n2P4/1BB5/1pP5/k4K2/6R1/8 w - - 0 1)

Kubbel, Leonid Ivanovich (AKA Kubbel, Karl Artur Leonid)

Neue Arbeiterzeitung, 1909

8/Q2p4/n2P4/1BB5/1pP5/k4K2/6R1/8

#2

7 + 4

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Be3?
      • 1...b3
        • 2.Bc5#
      • 1...Kb3!
    • 1.Bd4?
      • 1...b3
        • 2.Bc5#
      • 1...Kb3!
    • 1.Bb6?
      • 1...b3
        • 2.Bc5#
      • 1...Kb3!
  • Keys
    • 1.Bg1!
      • 1...Kb3
        • 2.Qe3#
      • 1...b3
        • 2.Bc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(E);N_PINP(b)
      • Vars
        • P(b);OGATEB,SBLOCK::B(E)
      • Refutation
        • K(a);N_SPINS(c),P-FLIGHT
    • Try
      • B(E);N_PINP(b)
      • Vars
        • P(b);OGATEB,SBLOCK::B(E)
      • Refutation
        • K(a);N_SPINS(c),P-FLIGHT
    • Try
      • B(E);N_PINP(b)
      • Vars
        • P(b);OGATEB,SBLOCK::B(E)
      • Refutation
        • K(a);N_SPINS(c),P-FLIGHT
  • Actual
    • B(E);N_PINP(b)
    • Vars
      • K(a);N_SPINS(c),P-FLIGHT::QAR(G)
      • P(b);OGATEB,SBLOCK::B(E)
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