MESON Chess Problem Database

Problem Display
PID: 19122 (8/4b3/4pNRp/1KPpk3/3N1r2/4p3/4P3/5Q2 w - - 0 1)

Larsen, Karl Adolf Koefoed

Skakbladet, 1912

8/4b3/4pNRp/1KPpk3/3N1r2/4p3/4P3/5Q2

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd4
      • 2.Qa1#
    • 1...Re4
      • 2.Sc6#
    • 1...Rg4
      • 2.Sc6#
    • 1...Rh4
      • 2.Sc6#
    • 1...Rf5
      • 2.Sc6#
  • Keys
    • 1.Rg4!
      • threat
        • 2.Qxf4#
      • 1...Kxd4
        • 2.Qa1#
      • 1...Kxf6
        • 2.Qxf4#
      • 1...Rxf1
        • 2.Sd7#
      • 1...Rxd4
        • 2.Sd7#
      • 1...Rxg4
        • 2.Sc6#
      • 1...Rxf6
        • 2.Sc6#
      • 1...Rf2
        • 2.Sd7#
      • 1...Rf3
        • 2.Sd7#
      • 1...Re4
        • 2.Sc6#
      • 1...Rf5
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • K(d);OGATEB,S_FLIGHT,XS(C)::QAB(A)
    • R(b);::S(C)
  • Actual
    • R(G);
    • Threat
      • QAB1(A),XR(b)
    • Vars
      • K(d);OGATEB,P_SPINR(b),S_FLIGHT,XS(C)::QAB(A)
      • K(d);P_SPINR(b),S_FLIGHT,XS(F)::QAR2(A),XR(b)
      • R(b);XQ(A)::S(F)
      • R(b);XS(C)::S(F)
      • R(b);XR(G)::S(C)
      • R(b);XS(F)::S(C)
      • R(b);::S(F)
      • R(b);::S(C)
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