MESON Chess Problem Database

Problem Display
PID: 52135 (2b3Q1/2R1Br2/1p3RP1/1p1k3p/3p4/5N2/6Br/5Kb1 w - - 0 1)

Velikhanov, Kenan

Probleemblad, 2004

(First published on Thu Jan 1 2004)

2b3Q1/2R1Br2/1p3RP1/1p1k3p/3p4/5N2/6Br/5Kb1

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bh3
      • 2.Qa8#
    • 1...Bg4
      • 2.Qa8#
    • 1...Bf5
      • 2.Qa8#
    • 1...Be6
      • 2.Qa8#
  • Tries
    • 1.Se1+?
      • 1...Ke5
        • 2.Sd3#
      • 1...Rxg2!
    • 1.Sg5+?
      • 1...Ke5
        • 2.Sxf7#
      • 1...Rxg2!
    • 1.Qxf7+?
      • 1...Be6
        • 2.Qxe6#
      • 1...Ke4!
  • Keys
    • 1.Re6!
      • threat
        • 2.Re5#
      • 1...Rxf3+
        • 2.Bxf3#
      • 1...Kxe6
        • 2.Qxf7#
      • 1...Rxe7
        • 2.Sxh2#
      • 1...Bxe6
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • B(i);OGATE,P_PINB(B)::QAB(H)
    • B(i);OGATE::QAB(H)
    • B(i);N_SPINR(h),OGATE::QAB(H)
  • Tries
    • Try
      • S(C);CHECK,P_SPINR(D)
      • Vars
        • K(e);N_SPINR(h),P-FLIGHT::S(C)
      • Refutation
        • R(b);XB(B)
    • Try
      • S(C);CHECK,P_SPINR(D)
      • Vars
        • K(e);N_SPINR(h),P-FLIGHT::S(C),XR(h)
      • Refutation
        • R(b);XB(B)
    • Try
      • Q(H);CHECK,XR(h)
      • Vars
        • B(i);N_GUARD,P_SPINB(i)::QAB1(H),XB(i)
      • Refutation
        • K(e);S_FLIGHT
  • Actual
    • R(D);N_PINR(h),P_SPINS(C)
    • Threat
      • R1(D)
    • Vars
      • R(h);CHECK,OGATE,P_SPINR(h),XS(C)::B(B),XR(h)
      • K(e);OGATEB,P_SPINR(h),S_FLIGHT,XR(D)::QAB1(H),XR(h)
      • R(h);N_PINS(C),XB(G)::B(B)+S(C),XR(b)
      • B(i);OGATE,SBLOCK,XR(D)::QAB(H)
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).