MESON Chess Problem Database

Problem Display
PID: 60939 (r3k2K/1R1p3p/P7/1P2P2R/2B3pB/2Q5/8/8 w q - 0 1)

McIntyre, Donald Glenoe

South African Chess Magazine, 1946

r3k2K/1R1p3p/P7/1P2P2R/2B3pB/2Q5/8/8

#2

9 + 5

5639 Some Problems For My Friends 1957

SOLUTION

  • SOUND
  • Sets
    • 1...Rxa6
      • 2.Rb8#
    • 1...Ra7
      • 2.Rb8#
    • 1...Rb8
      • 2.Rxb8#
  • Keys
    • 1.Rg5!
      • threat
        • 2.Rg8#
      • 1...Ke7+
        • 2.Rg8#
      • 1...0-0-0+
        • 2.Bg8#
      • 1...Kd8
        • 2.Rg8#
      • 1...Kf8
        • 2.Rg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(d);N_GUARD,XP(G)::R(H)
    • R(d);N_GUARD::R(H)
    • R(d);N_GUARD::R(H),XR(d)
  • Actual
    • R(F);
    • Threat
      • R(F)
    • Vars
      • K(e);CHECK,P-FLIGHT,P_SPINP(b)::B(C)+R(F)
      • K(e);0-0-0,CHECK,OGATEB::QAR(A)+B(B)
      • K(e);P-FLIGHT::B(C)+R(F),DCHECK
      • K(e);P-FLIGHT::R1(F)
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