MESON Chess Problem Database

Problem Display
PID: 427 (2N5/8/1nP1p3/4k1K1/R3B3/2r5/pQ2b3/q1nR4 w - - 0 1)

Chandler, Guy Wills

The Observer, 1948

(First published on Sun Feb 1 1948)

2N5/8/1nP1p3/4k1K1/R3B3/2r5/pQ2b3/q1nR4

#2

7 + 8

6104 A Tribute to G W Chandler 1997
15239 Valois Notebooks 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Qxc3#
    • 1...Bd3
      • 2.Qh2#
    • 1...Bf3
      • 2.Qh2#
  • Keys
    • 1.Bf3!
      • threat
        • 2.Re4#
      • 1...Bxd1
        • 2.Qh2#
      • 1...Bxf3
        • 2.Qh2#
      • 1...Sxa4
        • 2.Qb8#
      • 1...Bc4
        • 2.Qh2#
      • 1...Qb1
        • 2.Qxc3#
      • 1...Bd3
        • 2.Qh2#
      • 1...Sd3
        • 2.Qxe2#
      • 1...Sc4
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • Q(a);N_GUARD::QAB(B),XR(e)
    • B(d);OGATE::QAB(B)
  • Actual
    • B(D);
    • Threat
      • R1(C)
    • Vars
      • B(d);OGATE,XR(A)::QAB(B)
      • B(d);OGATE,XB(D)::QAB(B)
      • S(g);OGATE,XR(C)::QAB(B)
      • B(d);OGATE::QAB(B)
      • Q(a);N_GUARD::QAB(B),XR(e)
      • S(b);N_GUARD::QAR(B),XB(d)
      • S(g);N_GUARD,S_CUTB(d)::QAR(B)
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