MESON Chess Problem Database

Problem Display
PID: 143849 (2b1N2b/1BP2Q2/2P1PP2/RprkrpR1/2pNp3/2p1P3/1p2K3/8 w - - 0 1)

Rosner, Eugene David

StrateGems, 1998

2b1N2b/1BP2Q2/2P1PP2/RprkrpR1/2pNp3/2p1P3/1p2K3/8

#2

12 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc6
      • 2.Rxb5#
    • 1...Rxe6
      • 2.Rxf5#
    • 1...Bxb7
      • 2.Qd7#
    • 1...Bd7
      • 2.Qxd7#
  • Tries
    • 1.Sxb5?
      • threat
        • 2.Sxc3#
      • 1...Rxb5
        • 2.Rxb5#
      • 1...Rxe6
        • 2.Rxf5#
      • 1...Bxb7
        • 2.Qd7#
      • 1...c2
        • 2.Sc3#
      • 1...b1S!
    • 1.Bxc8?
      • threat
        • 2.Qd7#
      • 1...Rxe6
        • 2.Rxf5#
        • 2.Qxe6#
      • 1...Rxc6!
    • 1.e7+?
      • 1...Re6
        • 2.Rxf5#
      • 1...Be6!
  • Keys
    • 1.Sxf5!
      • threat
        • 2.Se7#
      • 1...Rxc6
        • 2.Rxb5#
      • 1...Rxf5
        • 2.Rxf5#
      • 1...Bxf6
        • 2.Sxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(f);OGATEB,P_SPINP(e),P_SPINR(f),XP(F)::R(D),XP(e)
    • R(h);OGATEB,P_SPINP(i),P_SPINR(h),XP(G)::R(E),XP(i)
    • B(j);N_GUARD,XB(I)::QAR2(K)
    • B(j);N_GUARD::QAR2(K),XB(j)
  • Tries
    • Try
      • S(C);XP(e)
      • Threat
        • S(C),XP(b)
      • Vars
        • R(f);OGATE,P_SPINR(f),XS(C)::R(D),XR(f)
        • R(h);OGATEB,P_SPINP(i),P_SPINR(h),XP(G)::R(E),XP(i)
        • B(j);N_GUARD,XB(I)::QAR2(K)
        • P(b);::S(C)
      • Refutation
        • P(a);
    • Try
      • B(I);XB(j)
      • Threat
        • QAR2(K)
      • Refutation
        • R(f);P_SPINP(e),XP(F)
    • Try
      • P(G);CHECK
      • Vars
        • R(h);P_SPINP(i),P_SPINR(h),S_CUTB(j)::R(E),XP(i)
      • Refutation
        • B(j);P_SPINB(j)
  • Actual
    • S(C);XP(i)
    • Threat
      • S(C)
    • Vars
      • R(f);OGATEB,P_SPINP(e),P_SPINR(f),XP(F)::R(D),XP(e)
      • R(h);OGATE,P_SPINR(h),XS(C)::R(E),XR(h)
      • B(k);XP(H)::S(L),XB(k)
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).