MESON Chess Problem Database

Problem Display
PID: 93596 (k4B2/7R/K7/8/8/8/5p2/5r2 w - - 0 1)

Siotis, A

Parallele 50, 1949

k4B2/7R/K7/8/8/8/5p2/5r2

#2

3 + 3

6490 yacpdb 2009
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Bd6?
      • threat
        • 2.Ra7#
        • 2.Rh8#
      • 1...Rb1
        • 2.Ra7#
      • 1...Rc1
        • 2.Ra7#
      • 1...Re1
        • 2.Ra7#
      • 1...Rg1
        • 2.Ra7#
      • 1...Rh1
        • 2.Ra7#
      • 1...Ra1+!
  • Keys
    • 1.Rh8!
      • threat
        • 2.Ba3#
        • 2.Bb4#
        • 2.Bc5#
        • 2.Bd6#
        • 2.Bh6#
        • 2.Be7#
        • 2.Bg7#
      • 1...Ra1+
        • 2.Ba3#
      • 1...Kb8
        • 2.Bd6#
      • 1...Rb1
        • 2.Bb4#
      • 1...Rc1
        • 2.Bc5#
      • 1...Rd1
        • 2.Bd6#
      • 1...Re1
        • 2.Be7#
      • 1...Rg1
        • 2.Bg7#
      • 1...Rh1
        • 2.Bh6#

Anticipated by 183759(1898)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);::R1(B)
      • Refutation
        • R(a);CHECK
  • Actual
    • R(B);
    • Threat
      • DUALS(7)
    • Vars
      • R(a);CHECK::R(B)+B(C)
      • K(c);P-FLIGHT::R(B)+B(C),DCHECK
      • R(a);::R(B)+B(C)
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