MESON Chess Problem Database

Problem Display
PID: 1034 (3N4/3n4/1pPrP3/1R1p1R1r/3k3p/1Pp1pPN1/2K4B/2n5 w - - 0 1)

Steiner, Paul

The Problemist Supplement, 1997

3N4/3n4/1pPrP3/1R1p1R1r/3k3p/1Pp1pPN1/2K4B/2n5

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf5
      • 2.Sxf5#
    • 1...Rxc6
      • 2.Sxc6#
      • 2.Rbxd5#
    • 1...Rxe6
      • 2.Sxe6#
      • 2.Rbxd5#
    • 1...Sa2
      • 2.Se2#
    • 1...Se2
      • 2.Sxe2#
    • 1...Sd3
      • 2.Se2#
    • 1...Sc5
      • 2.Rb4#
    • 1...Se5
      • 2.Rf4#
    • 1...e2
      • 2.Bg1#
  • Tries
    • 1.Sf7?
      • threat
        • 2.Rf4#
      • 1...Rxf5
        • 2.Sxf5#
      • 1...Rxe6
        • 2.Rbxd5#
      • 1...e2
        • 2.Bg1#
      • 1...Se2
        • 2.Sxe2#
      • 1...Sd3
        • 2.Se2#
      • 1...Sc5
        • 2.Rb4#
      • 1...Sf6!
  • Keys
    • 1.Sb7!
      • threat
        • 2.Rb4#
      • 1...Rxf5
        • 2.Sxf5#
      • 1...Rxc6
        • 2.Rbxd5#
      • 1...e2
        • 2.Bg1#
      • 1...Sa2
        • 2.Se2#
      • 1...Sd3
        • 2.Se2#
      • 1...Se5
        • 2.Rf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(g);XR(G)::S(E),XR(g)
    • S(a);N_GUARD::S(E)
    • S(a);N_GUARD::S(E),XS(a)
    • S(j);SBLOCK::R(F)
    • S(j);SBLOCK::R(G)
    • P(c);OGATEB::B(B)
  • Tries
    • Try
      • S(J);
      • Threat
        • R(G)
      • Vars
        • R(g);XR(G)::S(E),XR(g)
        • R(i);N_GUARD,XP(I)::R1(F),XP(f)
        • P(c);OGATEB::B(B)
        • S(a);N_GUARD::S(E),XS(a)
        • S(a);N_GUARD::S(E)
        • S(j);SBLOCK::R(F)
      • Refutation
        • S(j);
  • Actual
    • S(J);
    • Threat
      • R(F)
    • Vars
      • R(g);XR(G)::S(E),XR(g)
      • R(i);N_GUARD,XP(H)::R1(F),XP(f)
      • P(c);OGATEB::B(B)
      • S(a);N_GUARD::S(E)
      • S(j);SBLOCK::R(G)
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