MESON Chess Problem Database

Problem Display
PID: 208894 (5N2/8/4bn2/3p1k2/2BBp2K/R1N1P3/1rr3P1/8 w - - 0 1)

Oliver, W

Detroit Free Press, 1876

5N2/8/4bn2/3p1k2/2BBp2K/R1N1P3/1rr3P1/8

#2

8 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sh5
      • 2.g4#
    • 1...Sd7
      • 2.g4#
    • 1...Sh7
      • 2.g4#
    • 1...Se8
      • 2.g4#
    • 1...Sg8
      • 2.g4#
  • Tries
    • 1.Se2?
      • threat
        • 2.Sg3#
      • 1...Sh5
        • 2.g4#
      • 1...Rxe2!
    • 1.Sb5?
      • threat
        • 2.Sd6#
      • 1...Se8
        • 2.g4#
      • 1...Rxb5!
  • Keys
    • 1.Sxe4!
      • threat
        • 2.Sg3#
        • 2.Sd6#
      • 1...Kxe4
        • 2.Bd3#
      • 1...Rxg2
        • 2.Sd6#
      • 1...Sxe4
        • 2.g4#
      • 1...dxe4
        • 2.Bxe6#
      • 1...Rb6
        • 2.Sg3#
      • 1...Sh5
        • 2.Sd6#
      • 1...Se8
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • S(g);N_GUARD::P(A)
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • S(g);N_GUARD::P(A)
      • Refutation
        • R(b);XS(C)
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • S(g);N_GUARD::P(A)
      • Refutation
        • R(a);XS(C)
  • Actual
    • S(C);XP(c)
    • Threat
      • DUALS(2)
    • Vars
      • K(e);OGATEB,S_FLIGHT,XS(C)::B(E)
      • R(b);XP(A)::S(C)
      • S(g);N_GUARD,SBLOCK,XS(C)::P(A)
      • P(d);OGATE,SBLOCK,XS(C)::B(E),XB(f)
      • R(a);::S(C)
      • S(g);::S(C)
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