MESON Chess Problem Database

Problem Display
PID: 173511 (r3k2r/2ppb2p/1N4PN/3pQp2/8/4nK2/3pR3/8 w kq - 0 1)

Chernyavsky, Mykola Vasilovich

Kapustin, Fedor Mikhailovich

Springaren, 2017

r3k2r/2ppb2p/1N4PN/3pQp2/8/4nK2/3pR3/8

#2

6 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Kf8
      • 2.Qxh8#
    • 1...Sd1
      • 2.Qxh8#
      • 2.Qxe7#
    • 1...Sf1
      • 2.Qxh8#
      • 2.Qxe7#
    • 1...Sc2
      • 2.Qxh8#
      • 2.Qxe7#
    • 1...Sg2
      • 2.Qxh8#
      • 2.Qxe7#
    • 1...Sc4
      • 2.Qxh8#
      • 2.Qxe7#
    • 1...Sg4
      • 2.Qxh8#
      • 2.Qxe7#
  • Tries
    • 1.Sxd5?
      • threat
        • 2.Qxe7#
      • 1...Kf8
        • 2.Qxh8#
        • 2.Qxe7#
      • 1...0-0-0
        • 2.Qxc7#
      • 1...Sxd5
        • 2.Qxh8#
      • 1...Kd8!
    • 1.Qxe3?
      • threat
        • 2.Qxe7#
      • 1...Kd8
        • 2.Qxe7#
      • 1...Kf8
        • 2.Qxe7#
      • 1...Ra3!
  • Keys
    • 1.Sxf5!
      • threat
        • 2.Qxe7#
      • 1...Kd8
        • 2.Qxe7#
      • 1...Kf8
        • 2.Qxh8#
      • 1...0-0
        • 2.Qg7#
      • 1...Sxf5
        • 2.Qxh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(j);N_SPINB(g),P-FLIGHT::QAR2(C),XR(k)
  • Tries
    • Try
      • S(D);XP(c)
      • Threat
        • QAR1(C),XB(g)
      • Vars
        • K(j);0-0-0,N_SPINB(g),OGATEB::QAR1(C),XP(e)
        • S(b);XS(D)::QAR(C),XR(k)
      • Refutation
        • K(j);N_SPINB(g),P-FLIGHT
    • Try
      • Q(C);XS(b)
      • Threat
        • QAR1(C),XB(g)
      • Vars
        • K(j);N_SPINB(g),P-FLIGHT::QAB1(C),XB(g)
      • Refutation
        • R(i);P_PINQ(C)
  • Actual
    • S(F);XP(d)
    • Threat
      • QAR1(C),XB(g)
    • Vars
      • K(j);N_SPINB(g),P-FLIGHT::QAB1(C),XB(g)
      • K(j);N_SPINB(g),P-FLIGHT::QAR2(C),XR(k)
      • K(j);0-0,N_SPINB(g),OGATEB,P_PINS(F)::QAR1(C)
      • S(b);XS(F)::QAR(C),XR(k)
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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).