MESON Chess Problem Database

Problem Display
PID: 216820 (8/8/2pK4/8/2k5/4BB2/1Q6/5b2 w - - 0 1)

Melnichenko, Viktor Oleksandrovich

Zadachi i Etyudi, 1999

8/8/2pK4/8/2k5/4BB2/1Q6/5b2

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qb3#
    • 1...Be2
      • 2.Bxe2#
    • 1...Bg2
      • 2.Be2#
    • 1...Bh3
      • 2.Be2#
  • Tries
    • 1.Kxc6?
      • 1...Kd3
        • 2.Qb3#
      • 1...Be2
        • 2.Bxe2#
      • 1...Bd3
        • 2.Bd5#
      • 1...Bh3
        • 2.Be2#
      • 1...Bg2!
    • 1.Bd2?
      • 1...Kd3
        • 2.Qc3#
      • 1...Bd3
        • 2.Qb4#
      • 1...Be2
        • 2.Bxe2#
      • 1...Bg2
        • 2.Be2#
      • 1...Bh3
        • 2.Be2#
      • 1...c5!
    • 1.Bc5?
      • 1...Bd3
        • 2.Qb4#
      • 1...Be2
        • 2.Bxe2#
      • 1...Bg2
        • 2.Be2#
      • 1...Bh3
        • 2.Be2#
      • 1...Kd3!
    • 1.Bd5+?
      • 1...Kd3
        • 2.Qd2#
      • 1...cxd5!
    • 1.Qb4+?
      • 1...Kd3
        • 2.Qb3#
      • 1...Kxb4!
  • Keys
    • 1.Bd1!
      • threat
        • 2.Qb3#
      • 1...Kd3
        • 2.Qd4#

There are these versions: 229887

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • K(b);S_FLIGHT::QAR2(A)
    • B(a);N_GUARD::B(C),XB(a)
    • B(a);N_GUARD::B(C)
  • Tries
    • Try
      • K(D);P-FLIGHT,XP(c)
      • Vars
        • K(b);S_FLIGHT::QAR2(A)
        • B(a);N_GUARD::B(C),XB(a)
        • B(a);SBLOCK::B(C)
        • B(a);N_GUARD::B(C)
      • Refutation
        • B(a);P_PINB(C)
    • Try
      • B(B);
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
        • B(a);SBLOCK::QAR1(A)
        • B(a);N_GUARD::B(C),XB(a)
        • B(a);N_GUARD::B(C)
      • Refutation
        • P(c);
    • Try
      • B(B);
      • Vars
        • B(a);SBLOCK::QAR1(A)
        • B(a);N_GUARD::B(C),XB(a)
        • B(a);N_GUARD::B(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
      • Refutation
        • P(c);XB(C)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT,XQ(A)
  • Actual
    • B(C);
    • Threat
      • QAB1(A)
    • Vars
      • K(b);S_FLIGHT::QAR1(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).