MESON Chess Problem Database

Problem Display
PID: 80846 (2r5/1Qn5/2P1p1p1/6K1/2RbkPN1/Nn3p2/2bR4/3r1B2 w - - 0 1)

Herland, Sigmund

The Field, 1949

(First published on Sat Jun 11 1949)

2r5/1Qn5/2P1p1p1/6K1/2RbkPN1/Nn3p2/2bR4/3r1B2

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Sa1
      • 2.Rcxd4#
    • 1...Sc1
      • 2.Rcxd4#
    • 1...Sa5
      • 2.Rcxd4#
    • 1...Sc5
      • 2.Rcxd4#
    • 1...Sb5
      • 2.c7#
    • 1...Sa6
      • 2.c7#
    • 1...Sa8
      • 2.c7#
    • 1...Se8
      • 2.c7#
    • 1...f2
      • 2.Bg2#
  • Tries
    • 1.Qxc7?
      • threat
        • 2.Qe5#
      • 1...Kd5
        • 2.Sf6#
        • 2.Qe5#
      • 1...f2
        • 2.Bg2#
      • 1...e5
        • 2.Qxe5#
      • 1...Rxc7!
  • Keys
    • 1.Sb5!
      • threat
        • 2.Sc3#
      • 1...Kd5
        • 2.Sf6#
      • 1...Sxb5
        • 2.c7#
      • 1...f2
        • 2.Bg2#
      • 1...Sd5
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • S(c);N_GUARD::R1(D),XB(e)
    • S(i);OGATE::QAB(I)+P(H)
    • P(d);OGATEB::B(A)
  • Tries
    • Try
      • Q(I);XS(i)
      • Threat
        • QAR1(I)
      • Vars
        • P(d);OGATEB::B(A)
        • P(g);::QAR1(I),XP(g)
      • Refutation
        • R(j);XQ(I)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • K(f);S_FLIGHT::S(F)
      • S(i);OGATE,XS(C)::QAB(I)+P(H)
      • P(d);OGATEB::B(A)
      • S(i);SBLOCK::S(C)
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