MESON Chess Problem Database

Problem Display
PID: 262761 (2N5/6nb/4p2N/4k1rP/K2RPq1B/3PQRPn/B7/8 w - - 0 1)

Suchodolski, Wlodzimierz

2/3 Prize, Szachy, 1957

2N5/6nb/4p2N/4k1rP/K2RPq1B/3PQRPn/B7/8

#2

12 + 7

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.e5#
    • 1...Qxg3
      • 2.Sf7#
    • 1...Qxe4
      • 2.Sf7#
    • 1...Qg4
      • 2.Sf7#
    • 1...Qxh4
      • 2.Sf7#
    • 1...Qf7
      • 2.Sxf7#
  • Tries
    • 1.Rb4?
      • threat
        • 2.Qd4#
      • 1...Kf6
        • 2.e5#
      • 1...Qxe3
        • 2.Sf7#
      • 1...Qxe4
        • 2.Sf7#
        • 2.d4#
      • 1...Sf5!
    • 1.Rd7?
      • threat
        • 2.Qd4#
      • 1...Qxe4+
        • 2.d4#
      • 1...Kf6
        • 2.Sg4#
      • 1...Qxe3
        • 2.Sf7#
      • 1...Sf5!
    • 1.gxf4+?
      • 1...Kf6
        • 2.e5#
      • 1...Sxf4!
  • Keys
    • 1.Rd6!
      • threat
        • 2.Qd4#
      • 1...Qxe4+
        • 2.d4#
      • 1...Kf6
        • 2.Qd4#
      • 1...Qxe3
        • 2.Sf7#
      • 1...Sf5
        • 2.Rxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • K(c);OGATE,P_SPINQ(b),P_SPINR(d),S_FLIGHT::P(H)
    • Q(b);N_GUARD,XP(E)::S(K)
    • Q(b);N_GUARD,P_PINR(G),P_SPINQ(b),XP(H)::S(K)
    • Q(b);N_GUARD::S(K)
    • Q(b);N_GUARD,XB(I)::S(K)
    • Q(b);N_GUARD::S(K),XQ(b)
  • Tries
    • Try
      • R(G);
      • Threat
        • QAB1(C)
      • Vars
        • K(c);OGATE,P_SPINQ(b),P_SPINR(d),S_FLIGHT::P(H)
        • Q(b);N_GUARD,XQ(C)::S(K)
      • Refutation
        • S(f);
    • Try
      • R(G);P_SPINP(H)
      • Threat
        • QAB1(C)
      • Vars
        • Q(b);CHECK,P_SPINQ(b),XP(H)::P(B)
        • K(c);P_SPINQ(b),P_SPINR(d),S_FLIGHT::S(K)
        • Q(b);N_GUARD,N_PINP(H),XQ(C)::S(K)
      • Refutation
        • S(f);
    • Try
      • P(E);CHECK,XQ(b)
      • Vars
        • K(c);OGATE,P_SPINR(d),S_FLIGHT::P(H)
      • Refutation
        • S(a);XP(E)
  • Actual
    • R(G);P_SPINP(H)
    • Threat
      • QAB1(C)
    • Vars
      • Q(b);CHECK,P_SPINQ(b),XP(H)::P(B)
      • K(c);P_SPINP(e),P_SPINQ(b),P_SPINR(d),S_FLIGHT::QAB(C)
      • Q(b);N_GUARD,N_PINP(H),XQ(C)::S(K)
      • S(f);N_GUARD::R1(G),XP(e)
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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).