MESON Chess Problem Database

Problem Display
PID: 129888 (4r3/kB2b3/2Q5/8/2N5/4n3/K7/8 w - - 0 1)

Cumpe, Josef

Sokolske besedy, 1935

4r3/kB2b3/2Q5/8/2N5/4n3/K7/8

#2

4 + 4

6490 yacpdb 2009
5454 Near Snap 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Rb8
      • 2.Qa6#
      • 2.Qb6#
  • Tries
    • 1.Ba6?
      • threat
        • 2.Qb7#
      • 1...Kb8
        • 2.Qb7#
      • 1...Rb8!
    • 1.Bc8?
      • threat
        • 2.Qb7#
      • 1...Kb8
        • 2.Qb7#
      • 1...Rxc8!
  • Keys
    • 1.Ba8!
      • threat
        • 2.Qb7#
      • 1...Kb8
        • 2.Qb7#
      • 1...Rxa8
        • 2.Qb6#
      • 1...Rb8
        • 2.Qa4#

This anticipates 206805(1991), 23024(1998)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(D);
      • Threat
        • QAR1(C)
      • Vars
        • K(b);S_FLIGHT::QAR1(C)
      • Refutation
        • R(d);
    • Try
      • B(D);
      • Threat
        • QAR1(C)
      • Vars
        • K(b);S_FLIGHT::QAR1(C)
      • Refutation
        • R(d);XB(D)
  • Actual
    • B(D);
    • Threat
      • QAR1(C)
    • Vars
      • K(b);S_FLIGHT::QAR1(C)
      • R(d);SBLOCK,XB(D)::QAB1(C)
      • R(d);SBLOCK::QAR(C)
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