MESON Chess Problem Database

Problem Display
PID: 214454 (4Bb2/3PR1p1/2K1pk2/8/8/Q5P1/8/8 w - - 0 1)

Sardotsch, Nicolo

Nuova Rivista degli Scacchi, 1880

4Bb2/3PR1p1/2K1pk2/8/8/Q5P1/8/8

#2

6 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qd6?
      • 1...Kf5
        • 2.Qf4#
      • 1...Kg5
        • 2.Qf4#
      • 1...Bxe7
        • 2.Qf4#
      • 1...g5
        • 2.Qxe6#
      • 1...g6!
    • 1.Qf3+?
      • 1...Ke5
        • 2.Qf4#
      • 1...Kg5
        • 2.Qf4#
      • 1...Kxe7!
  • Keys
    • 1.Qe3!
      • 1...Kf5
        • 2.Qf4#
      • 1...Kxe7
        • 2.Qg5#
      • 1...Bxe7
        • 2.Qf4#
      • 1...g5
        • 2.Qxe6#
      • 1...e5
        • 2.Qxe5#
      • 1...g6
        • 2.Rf7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);P_PINP(a)
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR1(A)
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(A)
        • B(d);SBLOCK,XR(E)::QAR2(A)
        • P(c);SBLOCK::QAR1(A),XP(a)
      • Refutation
        • P(c);
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::QAB1(A)
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT,XR(E)
  • Actual
    • Q(A);
    • Vars
      • K(b);P-FLIGHT::QAR1(A)
      • K(b);P_SPINP(a),S_FLIGHT,XR(E)::QAB(A)
      • B(d);SBLOCK,XR(E)::QAR2(A)
      • P(c);SBLOCK::QAR1(A),XP(a)
      • P(a);::QAB1(A),XP(a)
      • P(c);SBLOCK::R1(E)
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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).