MESON Chess Problem Database

Problem Display
PID: 168431 (4r3/1QpN1p2/2p5/3kp2R/1Bpn4/2PN1p2/2pR1P2/3bKB2 w - - 0 1)

Petite, Efren

Problemas, 1980

4r3/1QpN1p2/2p5/3kp2R/1Bpn4/2PN1p2/2pR1P2/3bKB2

#2

10 + 11

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Sf6#
    • 1...Ra8
      • 2.Rxe5#
    • 1...Rb8
      • 2.Rxe5#
    • 1...Rc8
      • 2.Rxe5#
    • 1...Rd8
      • 2.Rxe5#
    • 1...Rf8
      • 2.Rxe5#
    • 1...Rg8
      • 2.Rxe5#
    • 1...Rh8
      • 2.Rxe5#
    • 1...Se6
      • 2.Sf6#
      • 2.Rxe5#
  • Keys
    • 1.S3xe5!
      • threat
        • 2.Qxc6#
      • 1...Rxe5+
        • 2.Rxe5#
      • 1...Ke4
        • 2.Rxd4#
      • 1...Ke6
        • 2.Bxc4#
      • 1...Re6
        • 2.Rxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • K(f);N_SPINP(g),P_SPINP(h),S_FLIGHT::S(J)
    • R(k);N_GUARD::R1(H),XP(g)
  • Actual
    • S(F);P_PINP(h),P_PINS(e),P_SPINS(F),XP(g)
    • Threat
      • QAB1(I),XP(h)
    • Vars
      • R(k);CHECK,OGATE,P_SPINR(k),XS(F)::R1(H),XR(k)
      • K(f);N_PINS(F),N_SPINS(e),S_FLIGHT::R1(C),XS(e)
      • K(f);N_PINS(F),N_SPINP(h),N_SPINS(e),S_FLIGHT::B(B),XP(d)
      • R(k);SBLOCK::R1(C),XS(e)
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).