MESON Chess Problem Database

Problem Display
PID: 176034 (8/B1prNrpn/4R2Q/K1P1b1q1/3PB2R/4kPp1/1N1ppp2/4nb2 w - - 0 1)

Skowronek, Ernst

1st Comm., Schach-Echo, 1936

8/B1prNrpn/4R2Q/K1P1b1q1/3PB2R/4kPp1/1N1ppp2/4nb2

#2

11 + 14

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rf5
      • 2.Sxf5#
    • 1...Bxd4
      • 2.Sc4#
    • 1...Bf6
      • 2.Sf5#
    • 1...Sf6
      • 2.Sf5#
  • Tries
    • 1.Sd5+?
      • 1...Kxd4
        • 2.c6#
      • 1...Rxd5!
  • Keys
    • 1.c6!
      • threat
        • 2.Sc4#
      • 1...Rd5+
        • 2.Sxd5#
      • 1...Bxd4+
        • 2.Bd5#
      • 1...Bf4+
        • 2.d5#
      • 1...Bd6+
        • 2.Sd5#
      • 1...Bf6+
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(l);N_GUARD::S(K),XR(l)
    • B(h);P_PINP(G),SBLOCK,XP(C)::S(A)
    • B(h);P_PINP(G),S_CUTR(l)::S(K)
    • S(n);S_CUTR(l)::S(K)
  • Tries
    • Try
      • S(K);CHECK
      • Vars
        • K(f);N_SPINQ(i),S_FLIGHT,XP(C)::B(J)+P(G)
      • Refutation
        • R(k);P_PINP(G),XS(K)
  • Actual
    • P(G);
    • Threat
      • S(A)
    • Vars
      • R(k);CHECK,N_GUARD::S(K),XR(k)
      • B(h);CHECK,OGATEB,P_SPINB(h),XP(C)::R(H)+B(D)
      • B(h);CHECK,N_GUARD,N_SPINQ(i)::B(J)+P(C)
      • B(h);CHECK,S_CUTR(k)::S(K)
      • B(h);CHECK,S_CUTR(l)::S(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).