MESON Chess Problem Database

Problem Display
PID: 154766 (Q7/4pN2/2p1B3/1pRp4/1K2kp1p/1Nppr1b1/4bqnn/8 w - - 0 1)

Novitski, Petr Adrinovich

Probleemblad, 2014

Q7/4pN2/2p1B3/1pRp4/1K2kp1p/1Nppr1b1/4bqnn/8

#2

6 + 15

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Sg5#
    • 1...d4
      • 2.Sg5#
      • 2.Qxc6#
  • Tries
    • 1.Bxd5+?
      • 1...cxd5
        • 2.Qxd5#
      • 1...Kf5!
    • 1.Bf5+?
      • 1...Kf3
        • 2.Sd4#
        • 2.Sg5#
      • 1...Kxf5!
    • 1.Rc4+?
      • 1...Kf3
        • 2.Sg5#
      • 1...dxc4
        • 2.Qxc6#
      • 1...d4
        • 2.Qxc6#
      • 1...bxc4!
    • 1.Qh8?
      • threat
        • 2.Sg5#
      • 1...Kf3
        • 2.Sg5#
      • 1...Rf3
        • 2.Qe5#
      • 1...Sf3
        • 2.Qh7#
      • 1...f3
        • 2.Qd4#
      • 1...d2!
  • Keys
    • 1.Rxd5!
      • threat
        • 2.Sg5#
      • 1...c5+
        • 2.Rxc5#
      • 1...Kf3
        • 2.Sg5#
      • 1...cxd5
        • 2.Qxd5#
      • 1...Rf3
        • 2.Re5#
      • 1...Sf3
        • 2.Sc5#
      • 1...f3
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(i);S_FLIGHT::S(E)
  • Tries
    • Try
      • B(D);CHECK,XP(m)
      • Vars
        • P(n);OGATE,P_SPINP(n),XB(D)::QAB1(F),XP(n)
      • Refutation
        • K(i);S_FLIGHT
    • Try
      • B(D);CHECK
      • Refutation
        • K(i);P_SPINP(m),S_FLIGHT,XB(D)
    • Try
      • R(C);CHECK
      • Vars
        • K(i);S_FLIGHT::S(E)
        • P(m);P_SPINP(n),S_CUTP(l),XR(C)::QAB(F),XP(n)
        • P(m);P_SPINP(m),S_CUTP(l)::QAB(F),XP(n)
      • Refutation
        • P(l);XR(C)
    • Try
      • Q(F);
      • Threat
        • S(E)
      • Vars
        • K(i);S_FLIGHT::S(E)
        • R(g);SBLOCK::QAR1(F)
        • S(d);SBLOCK::QAB(F)
        • P(j);SBLOCK::QAR1(F)
      • Refutation
        • P(f);
  • Actual
    • R(C);XP(m)
    • Threat
      • S(E)
    • Vars
      • P(n);CHECK,OGATEB::QAB(F)+R(C),XP(n)
      • K(i);S_FLIGHT::S(E)
      • P(n);OGATE,P_SPINP(n),XR(C)::QAB1(F),XP(n)
      • R(g);SBLOCK::R1(C)
      • S(d);SBLOCK::S(A)
      • P(j);SBLOCK::R1(C)
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).