Problem Display
PID: 38616 (5N2/3p4/K1k5/4Q3/5N2/8/8/1B6 w - - 0 1)

Kirillov, Stanislav Vasilovich

Sukhnev, Valery

1st Prize, Pershoveresen, 1993

5N2/3p4/K1k5/4Q3/5N2/8/8/1B6

#2

5 + 2


2786 More Fun with Chess Miniatures 2000

SOLUTION


  • SOUND
  • Sets
    • 1...d6
      • 2.Qc3#
  • Tries
    • 1.S8e6?
      • threat
        • 2.Sd4#
        • 2.Sd8#
        • 2.Qc7#
        • 2.Qc5#
        • 2.Qd5#
      • 1...d5
        • 2.Qc7#
        • 2.Qxd5#
      • 1...d6
        • 2.Qb5#
      • 1...dxe6!
    • 1.Ba2?
      • 1...d6
        • 2.Qc3#
      • 1...d5!
    • 1.Bc2?
      • threat
        • 2.Ba4#
      • 1...d6
        • 2.Qc3#
      • 1...d5!
    • 1.Bd3?
      • threat
        • 2.Bb5#
      • 1...d6
        • 2.Qc3#
      • 1...d5!
    • 1.Bf5?
      • threat
        • 2.Bxd7#
      • 1...d6
        • 2.Qc3#
      • 1...d5!
    • 1.Bg6?
      • 1...d6
        • 2.Qc3#
      • 1...d5!
    • 1.Bh7?
      • 1...d6
        • 2.Qc3#
      • 1...d5!
  • Keys
    • 1.S4e6!
      • threat
        • 2.Sd4#
        • 2.Sd8#
        • 2.Qc5#
      • 1...dxe6
        • 2.Be4#
      • 1...d5
        • 2.Qc7#
      • 1...d6
        • 2.Qb5#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::QAR(C)
  • Tries
    • Try
      • S(E);
      • Threat
        • DUALS(5)
      • Vars
        • P(b);SBLOCK::QAB1(C)
      • Refutation
        • P(b);XS(E)
    • Try
      • B(A);
      • Vars
        • P(b);SBLOCK::QAR(C)
      • Refutation
        • P(b);
    • Try
      • B(A);
      • Threat
        • B(A)
      • Vars
        • P(b);SBLOCK::QAR(C)
      • Refutation
        • P(b);
    • Try
      • B(A);
      • Threat
        • B(A)
      • Vars
        • P(b);SBLOCK::QAR(C)
      • Refutation
        • P(b);
    • Try
      • B(A);
      • Threat
        • B(A),XP(b)
      • Vars
        • P(b);SBLOCK::QAR(C)
      • Refutation
        • P(b);
    • Try
      • B(A);
      • Vars
        • P(b);SBLOCK::QAR(C)
      • Refutation
        • P(b);
    • Try
      • B(A);
      • Vars
        • P(b);SBLOCK::QAR(C)
      • Refutation
        • P(b);
  • Actual
    • S(B);
    • Threat
      • DUALS(3)
    • Vars
      • P(b);N_GUARD,XS(B)::B(A)
      • P(b);SBLOCK::QAR1(C)
      • P(b);SBLOCK::QAB1(C)


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).