MESON Chess Problem Database

Problem Display
PID: 268130 (4r3/3Q4/b4r2/N1pppR2/1ppk4/7R/1P6/KB6 w - - 0 1)

Fetmaks, Asmik

Probleemblad, 1985

4r3/3Q4/b4r2/N1pppR2/1ppk4/7R/1P6/KB6

#2

7 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf5
      • 2.Sc6#
    • 1...Rc6
      • 2.Sxc6#
    • 1...Rf7
      • 2.Sc6#
    • 1...Rff8
      • 2.Sc6#
    • 1...e4
      • 2.Rxd5#
      • 2.Qxd5#
  • Tries
    • 1.Qxe8?
      • threat
        • 2.Qxe5#
      • 1...Rxf5
        • 2.Sc6#
      • 1...e4
        • 2.Qe5#
      • 1...Re6!
    • 1.Qg7?
      • threat
        • 2.Qg1#
      • 1...Rxf5
        • 2.Sc6#
      • 1...Rg6
        • 2.Rf4#
      • 1...e4
        • 2.Sc6#
      • 1...Rg8!
  • Keys
    • 1.Qa4!
      • threat
        • 2.Qd1#
      • 1...b3
        • 2.Sxb3#
      • 1...c3
        • 2.bxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(h);N_GUARD,XR(F)::S(E)
    • R(h);N_GUARD::S(E),XR(h)
    • R(h);N_GUARD::S(E)
  • Tries
    • Try
      • Q(G);N_PINP(e),XR(i)
      • Threat
        • QAB1(G),XP(f)
      • Vars
        • R(h);N_GUARD,XR(F)::S(E)
        • P(f);::QAB1(G)
      • Refutation
        • R(h);
    • Try
      • Q(G);N_PINP(e)
      • Threat
        • QAB(G)
      • Vars
        • R(h);N_GUARD,P_SPINP(f),XR(F)::S(E)
        • R(h);N_GUARD,P_SPINP(f)::R(F)
        • P(f);P_SPINR(h)::S(E)
      • Refutation
        • R(i);
  • Actual
    • Q(G);N_PINP(e)
    • Threat
      • QAR(G)
    • Vars
      • P(a);P_SPINP(b)::S(E),XP(a)
      • P(b);OGATE,P_SPINP(a)::P(C),XP(b)
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Developed and maintained by Brian Stephenson.
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