MESON Chess Problem Database

Problem Display
PID: 21051 (3R4/7p/KB3P1N/1R4pQ/4k2b/p3P3/1p3rn1/1q2n3 w - - 0 1)

Chandler, Guy Wills

Mansfield, Comins

3rd Prize, Brisbane Courier, 1916-1917

3R4/7p/KB3P1N/1R4pQ/4k2b/p3P3/1p3rn1/1q2n3

#2

8 + 10

3202 Complete Mansfield/I 1996
133 The Problemist Supplement 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Qd3
      • 2.Re8#
    • 1...Rf3
      • 2.Qe8#
    • 1...Sxe3
      • 2.Rd4#
    • 1...g4
      • 2.Qd5#
  • Keys
    • 1.Sf7!
      • threat
        • 2.Re5#
      • 1...Sxe3
        • 2.Rd4#
      • 1...g4
        • 2.Qd5#
      • 1...Qd3
        • 2.Re8#
      • 1...Rf5
        • 2.Rb4#
      • 1...Bg3
        • 2.Sxg5#
      • 1...Sd3
        • 2.Sd6#
      • 1...Sf3
        • 2.Qxh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • Q(a);P_PINR(B),SBLOCK::R(H)
    • R(d);SBLOCK::QAR(C)
    • S(e);SBLOCK,XP(A)::R1(H)
    • P(i);OGATE::QAB1(C)
  • Actual
    • S(G);
    • Threat
      • R1(B)
    • Vars
      • S(e);SBLOCK,XP(A)::R1(H)
      • P(i);OGATE::QAB1(C)
      • Q(a);P_PINR(B),SBLOCK::R(H)
      • R(d);SBLOCK::R(B)
      • B(h);N_GUARD::S(G),XP(i)
      • S(b);SBLOCK::S(G)
      • S(b);SBLOCK,S_CUTR(d)::QAB(C),XP(j)
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