MESON Chess Problem Database

Problem Display
PID: 73173 (1n4b1/1P1kp1N1/p2pp2Q/BP2prp1/3N2r1/p6B/K2n4/2RR4 w - - 0 1)

Hassberg, Eric Manfred

Tijdschrift vd KNSB, 1946

1n4b1/1P1kp1N1/p2pp2Q/BP2prp1/3N2r1/p6B/K2n4/2RR4

#2

10 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Rf7
      • 2.Qxe6#
    • 1...Bh7
      • 2.Qxe6#
    • 1...Sc6
      • 2.bxc6#
  • Tries
    • 1.Rc8?
      • threat
        • 2.Rd8#
      • 1...Sc6
        • 2.bxc6#
      • 1...Rf8!
  • Keys
    • 1.Sdxe6!
      • threat
        • 2.Rc7#
      • 1...Bxe6+
        • 2.Qxe6#
      • 1...d5
        • 2.Sc5#
      • 1...Rc4
        • 2.Sf8#
      • 1...Sc4
        • 2.Sc5#
      • 1...Sc6
        • 2.bxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • R(e);S_CUTB(m)::QAB1(H),XP(i)
    • B(m);N_GUARD::QAB1(H),XP(i)
    • S(l);OGATE::P(G),XS(l)
  • Tries
    • Try
      • R(A);
      • Threat
        • R1(A)
      • Vars
        • S(l);OGATE::P(G),XS(l)
      • Refutation
        • R(e);
  • Actual
    • S(E);P_SPINS(E),XP(i)
    • Threat
      • R1(A)
    • Vars
      • B(m);CHECK,OGATE,XS(E)::QAB1(H),XB(m)
      • P(h);N_PINS(E)::S(E)
      • R(c);N_PINS(E)::S(E)
      • S(a);N_PINS(E),P_SPINP(h)::S(E)
      • S(l);OGATE::P(G),XS(l)
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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).