MESON Chess Problem Database

Problem Display
PID: 143012 (3R4/2q3B1/2rrp3/1p4R1/1Pk1N3/P7/2KP4/7B w - - 0 1)

Coppens, JP

Brisbane Courier, 1926

(First published on Sat Feb 6 1926)

3R4/2q3B1/2rrp3/1p4R1/1Pk1N3/P7/2KP4/7B

#2

9 + 6

14868 Pirnie Collection 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd2+
      • 2.Sxd2#
    • 1...Rd4
      • 2.Rxd4#
  • Keys
    • 1.Rg4!
      • threat
        • 2.Sxd6#
      • 1...Kd5+
        • 2.Sc3#
        • 2.Sc5#
      • 1...Rxd2+
        • 2.Sxd2#
      • 1...Rxd8
        • 2.Sd6#
      • 1...Rd3
        • 2.Sd6#
      • 1...Rd4
        • 2.Rxd4#
      • 1...Rd5
        • 2.Sd6#
      • 1...Rd7
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(d);CHECK,XP(C)::S(F),XR(d)
    • R(d);OGATE::R1(I),XR(d)
  • Actual
    • R(G);
    • Threat
      • R(G)+S(F),DCHECK,XR(d)
    • Vars
      • R(d);CHECK,XP(C)::R(G)+S(F),DCHECK,XR(d)
      • R(d);XR(I)::R(G)+S(F),DCHECK
      • R(d);::R(G)+S(F),DCHECK
      • R(d);OGATE::R1(I),XR(d)
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