MESON Chess Problem Database

Problem Display
PID: 184808 (8/8/1n2K3/2k5/1n1N1p2/1P3Pp1/1N1P2P1/6Q1 w - - 0 1)

Jewetsky, Feodor Orestovich

125 Shakhmaty Zadachi (Eventski), 1908

8/8/1n2K3/2k5/1n1N1p2/1P3Pp1/1N1P2P1/6Q1

#2

8 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sa2
      • 2.Sd3#
    • 1...Sc2
      • 2.Sd3#
    • 1...Sd3
      • 2.Sxd3#
    • 1...S4d5
      • 2.Sd3#
    • 1...Sa6
      • 2.Sd3#
    • 1...Sc6
      • 2.Sd3#
    • 1...Sa4
      • 2.Sxa4#
    • 1...Sc4
      • 2.Sa4#
    • 1...S6d5
      • 2.Sa4#
    • 1...Sd7
      • 2.Sa4#
    • 1...Sa8
      • 2.Sa4#
    • 1...Sc8
      • 2.Sa4#
  • Tries
    • 1.Qf2?
      • 1...Sa2
        • 2.Sd3#
      • 1...Sc2
        • 2.Sd3#
      • 1...Sd3
        • 2.Sxd3#
      • 1...S4d5
        • 2.Sd3#
      • 1...Sa6
        • 2.Sd3#
      • 1...Sc6
        • 2.Sd3#
      • 1...Sa4
        • 2.Sxa4#
      • 1...Sc4
        • 2.Sa4#
      • 1...S6d5
        • 2.Sa4#
      • 1...Sd7
        • 2.Sa4#
      • 1...Sa8
        • 2.Sa4#
      • 1...Sc8
        • 2.Sa4#
      • 1...gxf2!
    • 1.Qe3?
      • 1...Sa2
        • 2.Sd3#
      • 1...Sc2
        • 2.Sd3#
      • 1...Sd3
        • 2.Sxd3#
      • 1...S4d5
        • 2.Sd3#
      • 1...Sa6
        • 2.Sd3#
      • 1...Sc6
        • 2.Sd3#
      • 1...Sa4
        • 2.Sxa4#
      • 1...Sc4
        • 2.Sa4#
      • 1...S6d5
        • 2.Sa4#
      • 1...Sd7
        • 2.Sa4#
      • 1...Sa8
        • 2.Sa4#
      • 1...Sc8
        • 2.Sa4#
      • 1...fxe3!
  • Keys
    • 1.Qa1!
      • 1...Kxd4
        • 2.Qg1#
      • 1...Sa2
        • 2.Sd3#
      • 1...Sc2
        • 2.Sd3#
      • 1...Sd3
        • 2.Sxd3#
      • 1...S4d5
        • 2.Sd3#
      • 1...Sa6
        • 2.Sd3#
      • 1...Sc6
        • 2.Sd3#
      • 1...Sa4
        • 2.Sxa4#
      • 1...Sc4
        • 2.Sa4#
      • 1...S6d5
        • 2.Sa4#
      • 1...Sd7
        • 2.Sa4#
      • 1...Sa8
        • 2.Sa4#
      • 1...Sc8
        • 2.Sa4#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD::S(B)
    • S(b);N_GUARD::S(B),XS(b)
    • S(e);N_GUARD::S(B),XS(e)
    • S(e);N_GUARD::S(B)
  • Tries
    • Try
      • Q(A);
      • Vars
        • S(b);N_GUARD::S(B)
        • S(b);N_GUARD::S(B),XS(b)
        • S(e);N_GUARD::S(B),XS(e)
        • S(e);N_GUARD::S(B)
      • Refutation
        • P(a);XQ(A)
    • Try
      • Q(A);
      • Vars
        • S(b);N_GUARD::S(B)
        • S(b);N_GUARD::S(B),XS(b)
        • S(e);N_GUARD::S(B),XS(e)
        • S(e);N_GUARD::S(B)
      • Refutation
        • P(c);XQ(A)
  • Actual
    • Q(A);
    • Vars
      • K(d);OGATEB,S_FLIGHT,XS(G)::QAB(A)
      • S(b);N_GUARD::S(B)
      • S(b);N_GUARD::S(B),XS(b)
      • S(e);N_GUARD::S(B),XS(e)
      • S(e);N_GUARD::S(B)
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