MESON Chess Problem Database

Problem Display
PID: 136828 (4KN1B/n3Rp1b/Q7/3kn2r/1P2r1p1/7q/3bN3/3R3B w - - 0 1)

Grzankowski, Waclaw

HM., Die Schwalbe, 1938/II

4KN1B/n3Rp1b/Q7/3kn2r/1P2r1p1/7q/3bN3/3R3B

#2

9 + 10

6490 yacpdb 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Rh4
      • 2.Rxe5#
    • 1...Rh6
      • 2.Rxe5#
    • 1...Bf5
      • 2.Rxe5#
    • 1...Sf3
      • 2.Sc3#
    • 1...Sc4
      • 2.Sf4#
    • 1...Sg6
      • 2.Bxe4#
    • 1...Sd7
      • 2.Sf4#
    • 1...f5
      • 2.Rxe5#
      • 2.Qe6#
    • 1...f6
      • 2.Qe6#
  • Tries
    • 1.Rxd2+?
      • 1...Sd3
        • 2.Sc3#
        • 2.Sf4#
      • 1...Qd3!
    • 1.Qb5+?
      • 1...Kd6
        • 2.Qc5#
      • 1...Sxb5!
  • Keys
    • 1.Re6!
      • threat
        • 2.Rd6#
      • 1...fxe6
        • 2.Qxe6#
      • 1...Sb5
        • 2.Qxb5#
      • 1...Rh6
        • 2.Rxe5#
      • 1...Sd3
        • 2.Qa2#
      • 1...Sf3
        • 2.Sc3#
      • 1...Sc4
        • 2.Sf4#
      • 1...Sec6
        • 2.Sf4#
      • 1...Sg6
        • 2.Bxe4#
      • 1...Sd7
        • 2.Sf4#
      • 1...Sac6
        • 2.Qb5#
      • 1...Sc8
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 3
  • Sets
    • R(g);N_GUARD::R1(F),XS(f)
    • B(j);S_CUTR(g)::R1(F),XS(f)
    • S(f);N_SPINR(c),P_PINR(F),S_CUTQ(b)::S(C)
    • S(f);P_PINR(F)::S(C)
    • S(f);P_PINR(F),S_CUTB(j)::B(B),XR(c)
    • P(i);N_GUARD::QAB1(E)
  • Tries
    • Try
      • R(A);CHECK,XB(a)
      • Refutation
        • Q(b);P_SPINQ(b)
    • Try
      • Q(E);CHECK
      • Vars
        • K(e);N_SPINR(c),P-FLIGHT::QAB1(E)
      • Refutation
        • S(h);XQ(E)
  • Actual
    • R(F);
    • Threat
      • R1(F)
    • Vars
      • P(i);OGATE,XR(F)::QAB1(E),XP(i)
      • S(h);N_GUARD::QAR2(E),XS(h)
      • R(g);N_GUARD::R1(F),XS(f)
      • S(f);N_GUARD,N_SPINB(a),P_PINR(F),S_CUTQ(b)::QAB(E)
      • S(f);N_SPINR(c),P_PINR(F),S_CUTQ(b)::S(C)
      • S(f);P_PINR(F)::S(C)
      • S(f);P_PINR(F),S_CUTB(j)::B(B),XR(c)
      • S(h);N_GUARD::QAR2(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).