MESON Chess Problem Database

Problem Display
PID: 155712 (3n4/4N2p/2p1pK1P/3p4/1B1kp3/3P4/3Q4/8 w - - 0 1)

Knudsen, Einar August Rudolph

Skakbladet, 1914

3n4/4N2p/2p1pK1P/3p4/1B1kp3/3P4/3Q4/8

#2

6 + 7

15422 Problemskak 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Sb7
      • 2.Sxc6#
    • 1...Sf7
      • 2.Sxc6#
    • 1...exd3
      • 2.Qf4#
    • 1...e3
      • 2.Qc3#
    • 1...c5
      • 2.Bc3#
    • 1...e5
      • 2.Sf5#
  • Tries
    • 1.Kg5?
      • 1...Ke5
        • 2.d4#
      • 1...exd3
        • 2.Qf4#
      • 1...Sb7
        • 2.Sxc6#
      • 1...e3
        • 2.Qc3#
      • 1...c5
        • 2.Bc3#
      • 1...e5
        • 2.Sf5#
      • 1...Sf7+!
  • Keys
    • 1.Kg7!
      • 1...Ke5
        • 2.d4#
      • 1...exd3
        • 2.Qf4#
      • 1...Sb7
        • 2.Sxc6#
      • 1...Sf7
        • 2.Sxc6#
      • 1...e3
        • 2.Qc3#
      • 1...c5
        • 2.Bc3#
      • 1...e5
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(g);N_GUARD::S(F),XP(d)
    • P(b);OGATEB,P_SPINP(b),SBLOCK,XP(B)::QAR2(A)
    • P(b);SBLOCK::QAB1(A)
    • P(d);SBLOCK::B(C)
    • P(e);N_GUARD::S(F)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(a);OGATE,S_FLIGHT::P(B)
        • P(b);OGATEB,P_SPINP(b),SBLOCK,XP(B)::QAR2(A)
        • S(g);N_GUARD::S(F),XP(d)
        • P(b);SBLOCK::QAB1(A)
        • P(d);SBLOCK::B(C)
        • P(e);N_GUARD,SBLOCK::S(F)
      • Refutation
        • S(g);CHECK
  • Actual
    • K(D);S_FLIGHT
    • Vars
      • K(a);OGATE,S_FLIGHT::P(B)
      • P(b);OGATEB,P_SPINP(b),SBLOCK,XP(B)::QAR2(A)
      • S(g);N_GUARD::S(F),XP(d)
      • P(b);SBLOCK::QAB1(A)
      • P(d);SBLOCK::B(C)
      • P(e);N_GUARD,SBLOCK::S(F)
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