MESON Chess Problem Database

Problem Display
PID: 72895 (1b1Q2K1/p5BB/8/3P1P1N/r1n1kp2/7R/5P2/1Nr2R2 w - - 0 1)

Arguelles Ferrer, Antonio Fernandez

Peris Pardo, Julio

Tijdschrift vd KNSB, 1936

1b1Q2K1/p5BB/8/3P1P1N/r1n1kp2/7R/5P2/1Nr2R2

#2

11 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Sc3#
    • 1...Re1
      • 2.Sc3#
    • 1...Rxf1
      • 2.Sc3#
    • 1...Rc3
      • 2.Sxc3#
    • 1...Sb2
      • 2.Sd2#
    • 1...Sd2
      • 2.Sxd2#
    • 1...Sa3
      • 2.Sd2#
    • 1...Sa5
      • 2.Sd2#
    • 1...Sb6
      • 2.Sd2#
  • Tries
    • 1.Re1+?
      • 1...Rxe1
        • 2.Sc3#
      • 1...Se3!
    • 1.f6+?
      • 1...Ke5
        • 2.f7#
      • 1...Kd4!
  • Keys
    • 1.Rd1!
      • threat
        • 2.Rd4#
      • 1...Rxd1
        • 2.Sc3#
      • 1...Be5
        • 2.f6#
      • 1...Sb2
        • 2.Sd2#
      • 1...Sd2
        • 2.Sxd2#
      • 1...Sa3
        • 2.Sd2#
      • 1...Se3
        • 2.f3#
      • 1...Sa5
        • 2.Sd2#
      • 1...Se5
        • 2.Sf6#
      • 1...Sb6
        • 2.Sd2#
      • 1...Sd6
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • R(a);N_GUARD::S(A)
    • R(a);N_GUARD,XR(B)::S(A)
    • R(a);N_GUARD::S(A),XR(a)
    • S(c);N_GUARD::S(A)
    • S(c);N_GUARD::S(A),XS(c)
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • R(a);XR(B)::S(A)
      • Refutation
        • S(c);P_SPINS(c)
    • Try
      • P(F);CHECK
      • Vars
        • K(d);P-FLIGHT::B(H)+P(F)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • R(B);
    • Threat
      • R1(B)
    • Vars
      • R(a);N_GUARD,XR(B)::S(A)
      • B(g);SBLOCK::B(I)+P(F)
      • S(c);N_GUARD::S(A)
      • S(c);N_GUARD::S(A),XS(c)
      • S(c);SBLOCK::P(C)
      • S(c);SBLOCK::S(G)
      • S(c);N_GUARD,S_CUTB(g)::QAR(J)
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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).