MESON Chess Problem Database

Problem Display
PID: 239880 (8/3K1p1B/N7/3k2PR/R2P2pp/7r/4NP1b/8 w - - 0 1)

Zohar, Noam

Variantim, 2009

8/3K1p1B/N7/3k2PR/R2P2pp/7r/4NP1b/8

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Sxc3#
    • 1...Rg3
      • 2.Sf4#
      • 2.Sc7#
    • 1...Bg1
      • 2.Sf4#
      • 2.Sc7#
    • 1...Bg3
      • 2.Sc3#
    • 1...Bf4
      • 2.Sxf4#
    • 1...Bc7
      • 2.Sxc7#
    • 1...g3
      • 2.Sc3#
      • 2.Sf4#
      • 2.Sc7#
  • Tries
    • 1.Sg3?
      • threat
        • 2.Sc7#
        • 2.Be4#
      • 1...Rxg3
        • 2.Sc7#
      • 1...hxg3
        • 2.Sc7#
      • 1...f5
        • 2.Sc7#
        • 2.Bg8#
        • 2.gxf5 ep#
      • 1...Bxg3!
    • 1.Sc5?
      • threat
        • 2.Be4#
      • 1...f5
        • 2.Bg8#
      • 1...Re3!
    • 1.Bd3?
      • threat
        • 2.Sc3#
        • 2.Sb4#
        • 2.Ra5#
      • 1...Bd6
        • 2.Sc3#
      • 1...Bc7
        • 2.Sc3#
        • 2.Sb4#
        • 2.Sxc7#
      • 1...Rxd3!
    • 1.f3?
      • threat
        • 2.Sc3#
        • 2.Be4#
      • 1...gxf3
        • 2.Sc3#
      • 1...f5
        • 2.Sc3#
        • 2.Bg8#
      • 1...Rxf3!
  • Keys
    • 1.f4!
      • threat
        • 2.Sc7#
      • 1...Bxf4
        • 2.Sxf4#
      • 1...gxf4 ep
        • 2.Sc3#
      • 1...f5
        • 2.gxf5 ep#
      • 1...Rc3
        • 2.Sxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(b);N_GUARD::S(A),XR(b)
    • B(a);S_CUTR(b)::S(A)
    • B(a);N_GUARD::S(A),XB(a)
    • B(a);N_GUARD::S(G),XB(a)
  • Tries
    • Try
      • S(A);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);XS(A)::S(G)
        • P(d);XS(A)::S(G)
      • Refutation
        • B(a);XS(A)
    • Try
      • S(G);
      • Threat
        • B(I)
      • Vars
        • P(f);OGATEB::B(I)
      • Refutation
        • R(b);
    • Try
      • B(I);
      • Threat
        • DUALS(3)
      • Vars
        • B(a);::S(A)
      • Refutation
        • R(b);XB(I)
    • Try
      • P(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);XP(B)::S(A)
      • Refutation
        • R(b);XP(B)
  • Actual
    • P(B);
    • Threat
      • S(G)
    • Vars
      • B(a);XP(B)::S(A),XB(a)
      • P(c);EP,S_CUTR(b),XP(B)::S(A)
      • P(f);OGATE::R(F)+P(E),XP(f),EP
      • R(b);N_GUARD::S(A),XR(b)
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