MESON Chess Problem Database

Problem Display
PID: 185367 (Q6n/3p2K1/pB1p2PN/q2PkB2/1R5r/6P1/1Nb2n2/2r3bR w - - 0 1)

Sans, Jean

diagrammes, 1974

Q6n/3p2K1/pB1p2PN/q2PkB2/1R5r/6P1/1Nb2n2/2r3bR

#2

11 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rxh1
      • 2.Sc4#
      • 2.Bd4#
    • 1...Rh2
      • 2.Sc4#
      • 2.Bd4#
    • 1...Rh3
      • 2.Sc4#
      • 2.Bd4#
    • 1...Rc4
      • 2.Sxc4#
    • 1...Rd4
      • 2.Bxd4#
    • 1...Rf4
      • 2.gxf4#
    • 1...Rh5
      • 2.Sc4#
      • 2.Bd4#
    • 1...Be4
      • 2.Bd4#
    • 1...Se4
      • 2.Sc4#
    • 1...Sg4
      • 2.Sc4#
  • Keys
    • 1.Be4!
      • threat
        • 2.Qe8#
      • 1...Qxd5
        • 2.Qxd5#
      • 1...Rxe4
        • 2.Rh5#
      • 1...Bxe4
        • 2.Bd4#
      • 1...Sxe4
        • 2.Sc4#
      • 1...Sxg6
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • R(e);N_GUARD::S(B),XR(e)
    • R(e);N_GUARD::B(G),XR(e)
    • R(e);OGATE::P(C),XR(e)
    • B(c);S_CUTR(e)::B(G)
    • S(d);S_CUTR(e)::S(B)
  • Actual
    • B(F);
    • Threat
      • QAR(K)
    • Vars
      • Q(f);OGATE,XP(E)::QAR1(K),XQ(f)
      • R(e);OGATE,XB(F)::R(A)
      • B(c);SBLOCK,XB(F)::B(G)
      • S(d);SBLOCK,XB(F)::S(B)
      • S(k);N_GUARD,XP(H)::S(I)
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