MESON Chess Problem Database

Problem Display
PID: 184809 (7K/3p4/3P2Q1/2p1k3/2Rb1N2/7P/1n1PN2P/8 w - - 0 1)

Jewetsky, Feodor Orestovich

125 Shakhmaty Zadachi (Eventski), 1908

7K/3p4/3P2Q1/2p1k3/2Rb1N2/7P/1n1PN2P/8

#2

9 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Re4#
    • 1...Bf2
      • 2.Re4#
    • 1...Bc3
      • 2.Re4#
      • 2.Rxc5#
    • 1...Be3
      • 2.Re4#
  • Tries
    • 1.Sc1?
      • 1...Sxc4
        • 2.Scd3#
      • 1...Sd1
        • 2.Scd3#
      • 1...Bg1
        • 2.Re4#
      • 1...Bf2
        • 2.Re4#
      • 1...Bc3
        • 2.Re4#
      • 1...Be3
        • 2.Re4#
      • 1...Sd3
        • 2.Scxd3#
      • 1...Sa4
        • 2.Scd3#
      • 1...Kxf4+!
  • Keys
    • 1.Sc3!
      • 1...Kxf4+
        • 2.Qf6#
      • 1...Bxc3
        • 2.Re4#
      • 1...Sxc4
        • 2.Sd3#
      • 1...Sd1
        • 2.Sd3#
      • 1...Bg1
        • 2.Re4#
      • 1...Bf2
        • 2.Re4#
      • 1...Be3
        • 2.Re4#
      • 1...Sd3
        • 2.Sxd3#
      • 1...Sa4
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • B(b);OGATE::R1(E)
  • Tries
    • Try
      • S(B);
      • Vars
        • S(a);N_GUARD,XR(E)::S(B)
        • S(a);N_GUARD::S(B)
        • B(b);OGATE::R1(E)
        • S(a);N_GUARD::S(B),XS(a)
      • Refutation
        • K(d);CHECK,P_SPINB(b),S_FLIGHT,XS(F)
  • Actual
    • S(B);
    • Vars
      • K(d);CHECK,P_SPINB(b),S_FLIGHT,XS(F)::QAR2(H)
      • B(b);OGATE,XS(B)::R1(E)
      • S(a);N_GUARD,XR(E)::S(F)
      • S(a);N_GUARD::S(F)
      • B(b);OGATE::R1(E)
      • S(a);N_GUARD::S(F),XS(a)
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