MESON Chess Problem Database

Problem Display
PID: 87580 (8/8/Q7/8/5K2/N7/2N5/2k3BR w - - 0 1)

Kolpakov, Viktor Sergeevich

Problemista, 1997

8/8/Q7/8/5K2/N7/2N5/2k3BR

#2

6 + 1

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd1
      • 2.Be3#
  • Tries
    • 1.Ke3?
      • 1...Kd1
        • 2.Bf2#
        • 2.Bh2#
        • 2.Qf1#
      • 1...Kb2!
    • 1.Bc5+?
      • 1...Kd2
        • 2.Bb4#
      • 1...Kb2!
    • 1.Bb6+?
      • 1...Kd2
        • 2.Ba5#
      • 1...Kb2!
    • 1.Rh2?
      • 1...Kd1
        • 2.Qf1#
      • 1...Kb2!
    • 1.Qb5?
      • threat
        • 2.Be3#
      • 1...Kd1
        • 2.Be3#
      • 1...Kd2!
    • 1.Qa5?
      • threat
        • 2.Bd4#
      • 1...Kd1
        • 2.Qe1#
      • 1...Kb2!
    • 1.Qe6?
      • 1...Kd1
        • 2.Qe1#
      • 1...Kb2
        • 2.Bd4#
      • 1...Kd2!
  • Keys
    • 1.Qc4!
      • 1...Kd1
        • 2.Be3#
      • 1...Kb2
        • 2.Bd4#
      • 1...Kd2
        • 2.Be3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::R(B)+B(A)
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);CHECK
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);CHECK
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::QAR2(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • R(B)+B(A),DCHECK
      • Vars
        • K(a);P-FLIGHT::R(B)+B(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • R(B)+B(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);
      • Vars
        • K(a);P-FLIGHT::QAR1(F)
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(F);
    • Vars
      • K(a);P-FLIGHT::R(B)+B(A)
      • K(a);S_FLIGHT::B(A)
HTML5 logo

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).