MESON Chess Problem Database

Problem Display
PID: 102162 (b6b/8/Q3P3/2pk4/4NR2/4pN2/8/6K1 w - - 0 1)

Scheel, Johan

Svenska Dagbladet, 1920

b6b/8/Q3P3/2pk4/4NR2/4pN2/8/6K1

#2

6 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bc3
      • 2.Sxc3#
    • 1...Bf6
      • 2.Sxf6#
    • 1...c4
      • 2.Qd6#
  • Tries
    • 1.Rf5+?
      • 1...Be5
        • 2.Sc3#
        • 2.Sf6#
        • 2.Rxe5#
      • 1...Kxe4!
  • Keys
    • 1.Rf6!
      • threat
        • 2.Sc3#
      • 1...Kxe4
        • 2.Qc4#
      • 1...Bxf6
        • 2.Sxf6#
      • 1...Bc6
        • 2.Qd3#
      • 1...c4
        • 2.Qxa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(e);N_GUARD::S(C),XB(e)
    • P(b);SBLOCK::QAR1(E)
  • Tries
    • Try
      • R(D);CHECK
      • Refutation
        • K(c);S_FLIGHT,XS(C)
  • Actual
    • R(D);
    • Threat
      • S(C)
    • Vars
      • K(c);S_FLIGHT,XS(C)::QAR2(E)
      • B(e);XR(D)::S(C),XB(e)
      • B(d);SBLOCK::QAR2(E)
      • P(b);SBLOCK::QAB(E),XB(d)
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