MESON Chess Problem Database

Problem Display
PID: 103522 (1Qnb4/1BR1r1n1/Rp2p1K1/3Pk3/4N3/3P4/2N5/2B5 w - - 0 1)

Crancer, George A

New York Recorder, 1892

1Qnb4/1BR1r1n1/Rp2p1K1/3Pk3/4N3/3P4/2N5/2B5

#2

10 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...exd5
      • 2.Rxe7#
  • Tries
    • 1.Rd7+?
      • 1...Sd6
        • 2.Qxd6#
      • 1...Bc7!
    • 1.Rxe7+?
      • 1...Sd6
        • 2.Qxd6#
      • 1...Bc7!
  • Keys
    • 1.Sd2!
      • threat
        • 2.Sc4#
      • 1...Kf4
        • 2.Rc4#
      • 1...Kd6
        • 2.Sc4#
      • 1...exd5
        • 2.Rxe7#
      • 1...Sd6
        • 2.Sf3#
      • 1...b5
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(c);XP(E)::QAB(J)+R(I),DCHECK,XR(d)
  • Tries
    • Try
      • R(I);CHECK
      • Vars
        • S(f);N_GUARD,P_SPINS(f)::QAB1(J),XS(f)
      • Refutation
        • B(g);P_SPINB(g)
    • Try
      • R(I);CHECK,P_PINP(c),XR(d)
      • Vars
        • S(f);N_GUARD,P_SPINS(f)::QAB1(J),XS(f)
      • Refutation
        • B(g);P_SPINB(g)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(a);S_FLIGHT::QAB(J)+R(I),DCHECK
      • K(a);P_SPINP(b),S_FLIGHT::S(D)
      • P(c);XP(E)::QAB(J)+R(I),DCHECK,XR(d)
      • S(f);SBLOCK::S(D)
      • P(b);::S(D)
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).