Problem Display
PID: 228052 (8/8/7B/6Q1/3K2B1/8/1pk5/8 w - - 0 1)

Kuzmichev, Vladimir Viktorovich

64 Shakhmatnoe obozrenie, 2020

8/8/7B/6Q1/3K2B1/8/1pk5/8

#2

4 + 2


SOLUTION


  • SOUND
  • Tries
    • 1.Kc4?
      • threat
        • 2.Qf5#
        • 2.Qg6#
      • 1...b1Q
        • 2.Qd2#
      • 1...b1S
        • 2.Qc1#
      • 1...b1B
        • 2.Qc1#
        • 2.Qd2#
      • 1...b1R
        • 2.Qd2#
      • 1...Kb1!
    • 1.Bd1+?
      • 1...Kxd1
        • 2.Qd2#
      • 1...Kb1!
    • 1.Bf5+?
      • 1...Kd1
        • 2.Qd2#
      • 1...Kb3!
    • 1.Be6?
      • 1...Kd1
        • 2.Qd2#
      • 1...b1Q
        • 2.Qd2#
      • 1...b1S
        • 2.Qc1#
      • 1...b1B
        • 2.Qc1#
        • 2.Qd2#
      • 1...b1R
        • 2.Qd2#
      • 1...Kb1!
  • Keys
    • 1.Qa5!
      • 1...Kb1
        • 2.Bf5#
      • 1...Kb3
        • 2.Bd1#
      • 1...b1Q
        • 2.Qc3#
      • 1...b1S
        • 2.Qa2#
      • 1...b1B
        • 2.Qc3#
      • 1...b1R
        • 2.Qc3#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • P(a);SBLOCK::QAR1(C)
        • P(a);N_GUARD::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(B);CHECK
      • Vars
        • K(b);S_FLIGHT,XB(B)::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(B);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • K(b);S_FLIGHT::QAR1(C)
        • P(a);SBLOCK::QAR1(C)
        • P(a);N_GUARD::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(b);S_FLIGHT::B(B)
      • P(a);SBLOCK::QAR1(C)
      • P(a);OGATEB::QAR2(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).