MESON Chess Problem Database

Problem Display
PID: 193760 (8/6Q1/1r3R2/1n1pq3/1P1kp3/1PN5/1KPPnr2/8 w - - 0 1)

Houghteling, J

Pittsburgh Gazette-Times, 1916

8/6Q1/1r3R2/1n1pq3/1P1kp3/1PN5/1KPPnr2/8

#2

8 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rf1
      • 2.Sxe2#
    • 1...Rf3
      • 2.Sxe2#
    • 1...Rf4
      • 2.Sxe2#
    • 1...Rf5
      • 2.Sxe2#
    • 1...Rfxf6
      • 2.Sxe2#
    • 1...Ra6
      • 2.Sxb5#
    • 1...Rc6
      • 2.Sxb5#
    • 1...Rd6
      • 2.Sxb5#
    • 1...Re6
      • 2.Sxb5#
    • 1...Rbxf6
      • 2.Sxb5#
  • Keys
    • 1.Rf5!
      • threat
        • 2.Qxe5#
      • 1...Qxg7
        • 2.Rxd5#
      • 1...Rxf5
        • 2.Sxe2#
      • 1...Qf6
        • 2.Rxd5#
      • 1...Re6
        • 2.Sxb5#
      • 1...Rf6
        • 2.Sxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • R(b);N_GUARD::S(E),XS(a)
    • R(b);N_GUARD,XR(G)::S(E),XS(a)
    • R(h);N_GUARD::S(E),XS(e)
    • R(h);N_GUARD,XR(G)::S(E),XS(e)
  • Actual
    • R(G);P_PINQ(g)
    • Threat
      • QAB1(H),XQ(g)
    • Vars
      • Q(g);N_SPINQ(g),OGATE,XQ(H)::R1(G),XP(f)
      • R(b);N_GUARD,XR(G)::S(E),XS(a)
      • Q(g);OGATE::R1(G),XP(f)
      • R(h);N_GUARD::S(E),XS(e)
      • R(h);N_GUARD,N_SPINQ(g)::S(E),XS(e)
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