MESON Chess Problem Database

Problem Display
PID: 151195 (1q2r3/1p6/3br3/2pp4/2p5/3kPQ1N/3P1P2/2K4n w - - 0 1)

Boswell, Edward

Eddy, Edwin John

The Referee, 1927

(First published on Sun May 22 1927)

1q2r3/1p6/3br3/2pp4/2p5/3kPQ1N/3P1P2/2K4n

#2

6 + 10

15239 Valois Notebooks 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Sf4#
    • 1...Sxf2
      • 2.Sxf2#
    • 1...d4
      • 2.e4#
  • Tries
    • 1.Sg1?
      • threat
        • 2.Qxd5#
      • 1...Re4
        • 2.Qe2#
      • 1...Be5
        • 2.Qf5#
      • 1...d4
        • 2.e4#
      • 1...Re5!
  • Keys
    • 1.Kd1!
      • threat
        • 2.Qxd5#
      • 1...Sxf2+
        • 2.Sxf2#
      • 1...Re4
        • 2.Qe2#
      • 1...Re5
        • 2.Sf4#
      • 1...Be5
        • 2.Qf5#
      • 1...d4
        • 2.e4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(g);S_CUTB(f)::S(F)
    • S(a);XP(C)::S(F),XS(a)
    • P(e);SBLOCK::QAR(E)+P(D)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAR2(E),XP(e)
      • Vars
        • R(g);SBLOCK::QAB1(E)
        • B(f);S_CUTR(g)::QAB(E)
        • P(e);SBLOCK::QAR(E)+P(D)
      • Refutation
        • R(g);
  • Actual
    • K(A);P-FLIGHT
    • Threat
      • QAR2(E),XP(e)
    • Vars
      • S(a);CHECK,XP(C)::S(F),XS(a)
      • R(g);SBLOCK::QAB1(E)
      • R(g);S_CUTB(f)::S(F)
      • B(f);S_CUTR(g)::QAB(E)
      • P(e);SBLOCK::QAR(E)+P(D)
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