MESON Chess Problem Database

Problem Display
PID: 207104 (8/5B2/8/3R4/2k3r1/P1P4r/1K2R3/8 w - - 0 1)

Healey, Frank

A Collection of Two Hundred Chess Problems (Healey), 1866

8/5B2/8/3R4/2k3r1/P1P4r/1K2R3/8

#2

6 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Re4#
    • 1...Rg3
      • 2.Re4#
    • 1...Re4
      • 2.Rxe4#
    • 1...Rg5
      • 2.Re4#
    • 1...Rg6
      • 2.Re4#
    • 1...Rg7
      • 2.Re4#
    • 1...Rg8
      • 2.Re4#
  • Keys
    • 1.Ree5!
      • threat
        • 2.Rd1#
        • 2.Rd2#
        • 2.Rd4#
        • 2.Rd6#
        • 2.Rd7#
        • 2.Rd8#
      • 1...Rh2+
        • 2.Rd2#
      • 1...Rg2+
        • 2.Rd2#
      • 1...Rxc3
        • 2.Rd1#
        • 2.Rd2#
        • 2.Rd6#
        • 2.Rd7#
        • 2.Rd8#
      • 1...Rd4
        • 2.Rxd4#
      • 1...Rd3
        • 2.Rd4#
        • 2.Rc5#
      • 1...Rf3
        • 2.Rd4#
      • 1...Rh6
        • 2.Rd4#
      • 1...Rh7
        • 2.Rd4#
      • 1...Rf4
        • 2.Rd4#
      • 1...Rg6
        • 2.Rd4#
        • 2.Re4#
      • 1...Rg7
        • 2.Rd4#
        • 2.Re4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 7
  • Sets
    • R(c);N_GUARD::R(B)
    • R(c);N_GUARD::R(B),XR(c)
  • Actual
    • R(B);
    • Threat
      • DUALS(6)
    • Vars
      • R(a);CHECK::B(F)+R(E)
      • R(c);CHECK::B(F)+R(E)
      • R(c);::B(F)+R(E),DCHECK,XR(c)
      • R(a);::B(F)+R(E),DCHECK
      • R(c);::B(F)+R(E),DCHECK
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