MESON Chess Problem Database

Problem Display
PID: 34939 (4R3/1Q1p1p1k/2r1pP2/5pK1/4RpB1/2P5/4P3/8 w - - 0 1)

Reitman, Mark

Pat a Mat, 1991

4R3/1Q1p1p1k/2r1pP2/5pK1/4RpB1/2P5/4P3/8

#2

8 + 7

3657 Izbrannie Shakhmatnie Zadachi Marka Reitmana 2000

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Bxf5#
    • 1...d5
      • 2.Qxf7#
    • 1...d6
      • 2.Qxf7#
  • Tries
    • 1.Rc4?
      • 1...Rxc4
        • 2.Qh1#
      • 1...fxg4
        • 2.Qb1#
      • 1...Rc5
        • 2.Qh1#
      • 1...Ra6
        • 2.Qh1#
      • 1...Rb6
        • 2.Qh1#
      • 1...Rd6
        • 2.Qh1#
      • 1...Rc7
        • 2.Qh1#
      • 1...Rc8
        • 2.Qh1#
      • 1...e5
        • 2.Bxf5#
      • 1...d5
        • 2.Qxf7#
      • 1...d6
        • 2.Qxf7#
      • 1...f3!
    • 1.Rxf4?
      • 1...fxg4
        • 2.Qb1#
      • 1...Rc4
        • 2.Qh1#
      • 1...Rc5
        • 2.Qh1#
      • 1...Ra6
        • 2.Qh1#
      • 1...Rb6
        • 2.Qh1#
      • 1...Rd6
        • 2.Qh1#
      • 1...Rc7
        • 2.Qh1#
      • 1...Rc8
        • 2.Qh1#
      • 1...e5
        • 2.Bxf5#
      • 1...d5
        • 2.Qxf7#
      • 1...d6
        • 2.Qxf7#
      • 1...Rxc3!
  • Keys
    • 1.R4xe6!
      • threat
        • 2.Bxf5#
      • 1...fxg4
        • 2.Qb1#
      • 1...dxe6
        • 2.Qxf7#
      • 1...fxe6
        • 2.Qxd7#
      • 1...Rc5
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • P(d);N_GUARD::B(D),XP(b)
    • P(e);OGATE,P_SPINP(f)::QAR2(G),XP(f)
  • Tries
    • Try
      • R(C);
      • Vars
        • R(c);OGATE,XR(C)::QAR(G)
        • P(b);OGATEB,XB(D)::QAB(G)
        • R(c);OGATE::QAR(G)
        • P(d);N_GUARD::B(D),XP(b)
        • P(e);OGATE,P_SPINP(f)::QAR2(G),XP(f)
      • Refutation
        • P(a);
    • Try
      • R(C);XP(a)
      • Vars
        • P(b);OGATEB,XB(D)::QAB(G)
        • R(c);OGATE::QAR(G)
        • P(d);N_GUARD::B(D),XP(b)
        • P(e);OGATE,P_SPINP(f)::QAR2(G),XP(f)
      • Refutation
        • R(c);XP(B)
  • Actual
    • R(C);XP(d)
    • Threat
      • B(D),XP(b)
    • Vars
      • P(b);OGATEB,XB(D)::QAB(G)
      • P(e);OGATE,P_SPINP(f),XR(C)::QAR2(G),XP(f)
      • P(f);OGATEB,P_SPINP(e),XR(C)::QAR(G),XP(e)
      • R(c);OGATE::QAR(G)
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).