MESON Chess Problem Database

Problem Display
PID: 235186 (n3Bn2/Bb1R2N1/8/4p3/2P1kbK1/r4p2/2P2PP1/8 w - - 0 1)

Gruber, Lutz-Dieter

Schach, 2008

n3Bn2/Bb1R2N1/8/4p3/2P1kbK1/r4p2/2P2PP1/8

#2

9 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.gxf3#
    • 1...Ra2
      • 2.gxf3#
    • 1...Rd3
      • 2.cxd3#
    • 1...Ra4
      • 2.gxf3#
    • 1...Ra5
      • 2.gxf3#
    • 1...Ra6
      • 2.gxf3#
    • 1...Rxa7
      • 2.gxf3#
    • 1...Be3
      • 2.gxf3#
    • 1...Se6
      • 2.Bg6#
    • 1...Sg6
      • 2.Bxg6#
    • 1...Sxd7
      • 2.Bg6#
    • 1...Sh7
      • 2.Bg6#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Sd6#
      • 1...Rxa7
        • 2.gxf3#
      • 1...Rd3
        • 2.cxd3#
      • 1...Ra6
        • 2.gxf3#
      • 1...Sb6!
    • 1.Se6?
      • threat
        • 2.Sc5#
      • 1...Sxe6
        • 2.Bg6#
      • 1...Sxd7
        • 2.Bg6#
      • 1...Ra5
        • 2.gxf3#
      • 1...Be3
        • 2.gxf3#
      • 1...Bd5!
  • Keys
    • 1.Sh5!
      • threat
        • 2.Sf6#
      • 1...Sxd7
        • 2.Bg6#
      • 1...Ra6
        • 2.gxf3#
      • 1...Bg5
        • 2.Sg3#
      • 1...Sh7
        • 2.Bg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • R(a);N_GUARD::P(C),XP(b)
    • R(a);OGATE::P(A),XR(a)
    • R(a);N_GUARD,XB(F)::P(C),XP(b)
    • B(d);S_CUTR(a)::P(C),XP(b)
    • S(h);N_GUARD::B(I)
    • S(h);N_GUARD::B(I),XS(h)
    • S(h);N_GUARD,XR(G)::B(I)
  • Tries
    • Try
      • S(H);
      • Threat
        • S(H)
      • Vars
        • R(a);N_GUARD,XB(F)::P(C),XP(b)
        • R(a);OGATE::P(A),XR(a)
        • R(a);N_GUARD::P(C),XP(b)
      • Refutation
        • S(g);
    • Try
      • S(H);
      • Threat
        • S(H)
      • Vars
        • S(h);N_GUARD,XS(H)::B(I)
        • S(h);N_GUARD,XR(G)::B(I)
        • R(a);N_GUARD::P(C),XP(b)
        • B(d);S_CUTR(a)::P(C),XP(b)
      • Refutation
        • B(f);
  • Actual
    • S(H);
    • Threat
      • S(H)
    • Vars
      • S(h);N_GUARD,XR(G)::B(I)
      • R(a);N_GUARD::P(C),XP(b)
      • B(d);N_GUARD::S(H)
      • S(h);N_GUARD::B(I)
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