MESON Chess Problem Database

Problem Display
PID: 113519 (8/1n4p1/6Qn/4kp2/R7/4N1N1/8/1K6 w - - 0 1)

Wurzburg, Otto

Canadian Chess Association, 1898

8/1n4p1/6Qn/4kp2/R7/4N1N1/8/1K6

#2

5 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.Re4#
  • Keys
    • 1.Se4!
      • 1...Kf4
        • 2.Qg3#
      • 1...fxe4
        • 2.Rxe4#
      • 1...Sg4
        • 2.Qxf5#
      • 1...Sf7
        • 2.Qxf5#
      • 1...Sg8
        • 2.Qxf5#
      • 1...Sa5
        • 2.Qd6#
      • 1...Sc5
        • 2.Qd6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sd8
        • 2.Qd6#
      • 1...f4
        • 2.Qe8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • P(b);N_GUARD::R1(D)
  • Actual
    • S(C);
    • Vars
      • K(a);S_FLIGHT::QAB1(E)
      • P(b);OGATE,XS(C)::R1(D),XP(b)
      • S(c);N_GUARD::QAR1(E),XP(b)
      • S(d);N_GUARD::QAB1(E)
      • S(d);N_GUARD::QAB1(E),XS(d)
      • P(b);SBLOCK::QAR(E)
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