MESON Chess Problem Database

Problem Display
PID: 140376 (5n1B/2pr3B/2Q2n2/2p1b3/3k2rp/1K1p1p1q/5P1p/3NNb2 w - - 0 1)

Daniel, Arthur William

1st Comm., BCPS 049. Ty., 1943

5n1B/2pr3B/2Q2n2/2p1b3/3k2rp/1K1p1p1q/5P1p/3NNb2

#2

7 + 14

56 The Problemist 1943

SOLUTION

  • SOUND
  • Sets
    • 1...Bg3
      • 2.Sxf3#
    • 1...Bf4
      • 2.Qe4#
    • 1...d2
      • 2.Sc2#
    • 1...c4+
      • 2.Qxc4#
  • Tries
    • 1.Qa4+?
      • 1...c4+
        • 2.Qxc4#
      • 1...Kd5!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Sb5#
      • 1...c4+
        • 2.Qxc4#
      • 1...Bg3
        • 2.Sxf3#
      • 1...Bf4
        • 2.Qe4#
      • 1...Bd6
        • 2.Qd5#
      • 1...d2
        • 2.Sc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(j);P_SPINS(k),S_CUTQ(e)::S(B),XP(d)
    • B(j);P_SPINS(k),S_CUTR(g)::QAR1(E)
    • P(c);N_GUARD::S(B)
    • P(i);CHECK,OGATE::QAR1(E),XP(i)
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • P(i);CHECK,P_SPINP(i)::QAR1(E),XP(i)
      • Refutation
        • K(f);P-FLIGHT
  • Actual
    • S(A);
    • Threat
      • S(A)
    • Vars
      • P(i);CHECK,OGATE::QAR1(E),XP(i)
      • B(j);P_SPINS(k),S_CUTQ(e)::S(B),XP(d)
      • B(j);P_SPINS(k),S_CUTR(g)::QAR1(E)
      • B(j);P_SPINS(k),S_CUTR(m)::QAR1(E)
      • P(c);N_GUARD::S(B)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).