MESON Chess Problem Database

Problem Display
PID: 152422 (2KB3r/1pP5/3k4/6R1/1N4B1/8/6b1/8 w - - 0 1)

Johnson, Allein

Good Companions (November First Attempt Ty.), 1915

2KB3r/1pP5/3k4/6R1/1N4B1/8/6b1/8

#2

6 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd8+
      • 2.cxd8Q#
    • 1...Bf1
      • 2.Rd5#
    • 1...Bh3
      • 2.Rd5#
    • 1...Bd5
      • 2.Rxd5#
  • Keys
    • 1.Kb8!
      • threat
        • 2.c8S#
      • 1...Rxd8+
        • 2.cxd8Q#
      • 1...Bd5
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • R(d);CHECK,OGATE,XB(F)::PXR(d)=Q
    • B(a);N_GUARD::R1(C)
    • B(a);N_GUARD,N_PINB(F),P_PINB(B)::R1(C)
    • B(a);N_GUARD::R1(C),XB(a)
  • Actual
    • K(E);P-FLIGHT
    • Threat
      • P=S
    • Vars
      • R(d);CHECK,OGATE,XB(F)::PXR(d)=Q
      • B(a);N_GUARD::R1(C),XB(a)
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