MESON Chess Problem Database

Problem Display
PID: 107284 (k7/1p3p1b/3B1p2/1N3p2/3p1P2/2p5/p1P3KR/6Q1 w - - 0 1)

Ezdin, Ivan Petrovich

Shakmatni Globus, 1993

k7/1p3p1b/3B1p2/1N3p2/3p1P2/2p5/p1P3KR/6Q1

#2

7 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bg6
      • 2.Rh8#
    • 1...a1Q
      • 2.Qxa1#
    • 1...a1S
      • 2.Qxa1#
    • 1...a1B
      • 2.Qxa1#
    • 1...a1R
      • 2.Qxa1#
    • 1...d3
      • 2.Qa7#
  • Tries
    • 1.Kf2?
      • 1...b6
        • 2.Qh1#
        • 2.Qg2#
      • 1...a1Q
        • 2.Qxa1#
      • 1...a1S
        • 2.Qxa1#
      • 1...a1B
        • 2.Qxa1#
      • 1...a1R
        • 2.Qxa1#
      • 1...Bg6
        • 2.Rh8#
      • 1...Bg8
        • 2.Qxg8#
      • 1...d3!
    • 1.Kf3?
      • 1...a1Q
        • 2.Qxa1#
      • 1...a1S
        • 2.Qxa1#
      • 1...a1B
        • 2.Qxa1#
      • 1...a1R
        • 2.Qxa1#
      • 1...Bg6
        • 2.Rh8#
      • 1...Bg8
        • 2.Qxg8#
      • 1...d3
        • 2.Qa7#
      • 1...b6!
    • 1.Kg3?
      • 1...b6
        • 2.Qh1#
        • 2.Qg2#
      • 1...a1Q
        • 2.Qxa1#
      • 1...a1S
        • 2.Qxa1#
      • 1...a1B
        • 2.Qxa1#
      • 1...a1R
        • 2.Qxa1#
      • 1...Bg6
        • 2.Rh8#
      • 1...d3
        • 2.Qa7#
      • 1...Bg8!
    • 1.Kh3?
      • 1...b6
        • 2.Qh1#
        • 2.Qg2#
      • 1...a1Q
        • 2.Qxa1#
      • 1...a1S
        • 2.Qxa1#
      • 1...a1B
        • 2.Qxa1#
      • 1...a1R
        • 2.Qxa1#
      • 1...Bg8
        • 2.Qxg8#
      • 1...d3
        • 2.Qa7#
      • 1...Bg6!
    • 1.Qe3?
      • threat
        • 2.Qe8#
      • 1...b6
        • 2.Qf3#
      • 1...dxe3!
    • 1.Qc1?
      • threat
        • 2.Qa3#
      • 1...a1Q
        • 2.Qxa1#
      • 1...a1R
        • 2.Qxa1#
      • 1...b6!
  • Keys
    • 1.Kh1!
      • 1...b6
        • 2.Qg2#
      • 1...a1Q
        • 2.Qxa1#
      • 1...a1S
        • 2.Qxa1#
      • 1...a1B
        • 2.Qxa1#
      • 1...a1R
        • 2.Qxa1#
      • 1...Bg6
        • 2.Rh8#
      • 1...Bg8
        • 2.Qxg8#
      • 1...d3
        • 2.Qa7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(h);OGATE::R(D)
    • P(a);OGATEB::QAB(A),XQ(a)
    • P(a);OGATEB::QAB(A),XS(a)
    • P(a);OGATEB::QAB(A),XB(a)
    • P(a);OGATEB::QAB(A),XR(a)
    • P(c);OGATE::QAR1(A)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • P(a);OGATEB::QAB(A),XQ(a)
        • P(a);OGATEB::QAB(A),XS(a)
        • P(a);OGATEB::QAB(A),XB(a)
        • P(a);OGATEB::QAB(A),XR(a)
        • B(h);OGATE::R(D)
        • B(h);N_GUARD::QAR(A),XB(h)
      • Refutation
        • P(c);
    • Try
      • K(C);S_FLIGHT
      • Vars
        • P(a);OGATEB::QAB(A),XQ(a)
        • P(a);OGATEB::QAB(A),XS(a)
        • P(a);OGATEB::QAB(A),XB(a)
        • P(a);OGATEB::QAB(A),XR(a)
        • B(h);OGATE::R(D)
        • B(h);N_GUARD::QAR(A),XB(h)
        • P(c);OGATE::QAR1(A)
      • Refutation
        • P(f);
    • Try
      • K(C);P-FLIGHT
      • Vars
        • P(a);OGATEB::QAB(A),XQ(a)
        • P(a);OGATEB::QAB(A),XS(a)
        • P(a);OGATEB::QAB(A),XB(a)
        • P(a);OGATEB::QAB(A),XR(a)
        • B(h);OGATE::R(D)
        • P(c);OGATE::QAR1(A)
      • Refutation
        • B(h);
    • Try
      • K(C);S_FLIGHT
      • Vars
        • P(a);OGATEB::QAB(A),XQ(a)
        • P(a);OGATEB::QAB(A),XS(a)
        • P(a);OGATEB::QAB(A),XB(a)
        • P(a);OGATEB::QAB(A),XR(a)
        • B(h);N_GUARD::QAR(A),XB(h)
        • P(c);OGATE::QAR1(A)
      • Refutation
        • B(h);
    • Try
      • Q(A);
      • Threat
        • QAR(A)
      • Vars
        • P(f);OGATEB::QAB(A)
      • Refutation
        • P(c);XQ(A)
    • Try
      • Q(A);
      • Threat
        • QAR(A)
      • Vars
        • P(a);OGATEB::QAB(A),XQ(a)
        • P(a);OGATEB::QAB(A),XR(a)
      • Refutation
        • P(f);
  • Actual
    • K(C);S_FLIGHT
    • Vars
      • P(f);OGATEB::QAB(A)
      • P(a);OGATEB,P_PINQ(A)::QAB(A),XQ(a)
      • P(a);OGATEB::QAB(A),XS(a)
      • P(a);OGATEB::QAB(A),XB(a)
      • P(a);OGATEB,P_PINQ(A)::QAB(A),XR(a)
      • B(h);OGATE::R(D)
      • B(h);N_GUARD::QAR(A),XB(h)
      • P(c);OGATE::QAR1(A)
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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).