MESON Chess Problem Database

Problem Display
PID: 15313 (8/8/3pp3/1p1k4/8/2R1K3/8/2Q5 w - - 0 1)

Fadeev, N

Istovets, 1982

8/8/3pp3/1p1k4/8/2R1K3/8/2Q5

#2

3 + 4

3296 Shakhmatny zadachi miniaturi 1987
2786 More Fun with Chess Miniatures 2000
145 StrateGems 2012

SOLUTION

  • SOUND
  • Tries
    • 1.Kf4?
      • threat
        • 2.Rd3#
        • 2.Qd2#
        • 2.Qd1#
      • 1...Kd4
        • 2.Qd2#
      • 1...e5+!
    • 1.Qb2?
      • threat
        • 2.Qxb5#
      • 1...Ke5
        • 2.Rc5#
      • 1...e5
        • 2.Qa2#
        • 2.Qb3#
      • 1...b4!
    • 1.Qa3?
      • 1...b4
        • 2.Qa5#
      • 1...e5
        • 2.Qa2#
        • 2.Qb3#
      • 1...Ke5!
    • 1.Qb1?
      • threat
        • 2.Qe4#
        • 2.Qxb5#
      • 1...b4
        • 2.Qe4#
      • 1...e5
        • 2.Qa2#
        • 2.Qb3#
      • 1...Ke5!
    • 1.Qf1?
      • threat
        • 2.Qxb5#
      • 1...b4
        • 2.Qb5#
      • 1...e5
        • 2.Qf7#
      • 1...Ke5!
    • 1.Qg1?
      • 1...Ke5
        • 2.Qg5#
      • 1...e5
        • 2.Qg8#
      • 1...b4!
    • 1.Qc2?
      • threat
        • 2.Qe4#
      • 1...e5
        • 2.Qb3#
        • 2.Qa2#
      • 1...Ke5!
  • Keys
    • 1.Qa1!
      • 1...Ke5
        • 2.Rc5#
      • 1...b4
        • 2.Qa5#
      • 1...e5
        • 2.Qa2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Threat
        • DUALS(3)
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • P(d);CHECK
    • Try
      • Q(A);
      • Threat
        • QAR2(A),XP(a)
      • Vars
        • K(b);P-FLIGHT::QAB(A)+R(B),DCHECK
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Vars
        • P(a);OGATEB::QAR(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAR2(A),XP(a)
      • Vars
        • P(a);::QAR2(A)
        • P(d);OGATEB,SBLOCK::QAB(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
        • P(d);OGATEB,SBLOCK::QAB(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(b);P-FLIGHT::QAB(A)+R(B),DCHECK
      • P(a);OGATEB::QAR(A)
      • P(d);SBLOCK::QAB(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).