MESON Chess Problem Database

Problem Display
PID: 7337 (2n2Q2/B7/p2rp1NK/bPNk1B2/2nP2R1/2R2P2/3pP3/1b6 w - - 0 1)

Mira-Kraft, Edwin

Rochade Europa, 1999

2n2Q2/B7/p2rp1NK/bPNk1B2/2nP2R1/2R2P2/3pP3/1b6

#2

12 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rd7
      • 2.Bxe6#
    • 1...Rd8
      • 2.Bxe6#
    • 1...Sb6
      • 2.Se7#
    • 1...Sxa7
      • 2.Se7#
    • 1...Se7
      • 2.Sxe7#
  • Tries
    • 1.Sxe6?
      • threat
        • 2.Sef4#
        • 2.Sgf4#
      • 1...Rxe6
        • 2.Qc5#
      • 1...Sxa7
        • 2.Sgf4#
        • 2.Se7#
      • 1...Rb6
        • 2.Sc7#
        • 2.Sgf4#
        • 2.Qc5#
      • 1...Bb6
        • 2.Sgf4#
      • 1...S4b6
        • 2.Sc7#
        • 2.Sgf4#
        • 2.Rc5#
      • 1...S8b6
        • 2.Sc7#
        • 2.Sgf4#
        • 2.Se7#
      • 1...axb5!
    • 1.Qxd6+?
      • 1...S4xd6
        • 2.Bxe6#
      • 1...S8xd6
        • 2.Se7#
        • 2.Bxe6#
      • 1...Kxd6!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Sdf4#
        • 2.Sgf4#
        • 2.Be4#
        • 2.e4#
      • 1...Bxd3
        • 2.Sf4#
      • 1...Sxa7
        • 2.Se7#
      • 1...axb5
        • 2.Be4#
      • 1...exf5
        • 2.Sf4#
      • 1...Rb6
        • 2.Qc5#
      • 1...Bb6
        • 2.Sb4#
      • 1...Se3
        • 2.Sdf4#
        • 2.Sgf4#
        • 2.Be4#
        • 2.Rc5#
      • 1...S4b6
        • 2.Rc5#
      • 1...S8b6
        • 2.Se7#
      • 1...e5
        • 2.e4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 3
  • Sets
    • R(g);N_GUARD::B(H),XP(h)
    • S(i);N_GUARD::S(I)
    • S(i);N_GUARD,XB(K)::S(I)
    • S(i);N_GUARD::S(I),XS(i)
  • Tries
    • Try
      • S(G);XP(h)
      • Threat
        • DUALS(2)
      • Vars
        • R(g);OGATE,P_PINS(I),XS(G)::QAR1(L)
        • B(d);::S(I)
      • Refutation
        • P(f);XP(F)
    • Try
      • Q(L);CHECK,XR(g)
      • Vars
        • S(c);SBLOCK,XQ(L)::B(H),XP(h)
      • Refutation
        • K(e);P-FLIGHT,XQ(L)
  • Actual
    • S(G);
    • Threat
      • DUALS(4)
    • Vars
      • B(a);XS(G)::S(I)
      • S(i);N_GUARD,XB(K)::S(I)
      • P(f);XP(F)::B(H)
      • P(h);P_PINS(I),XB(H)::S(G)
      • R(g);OGATE::QAR1(L)
      • B(d);N_GUARD::S(G)
      • S(c);OGATE::R1(B)
      • S(i);N_GUARD::S(I)
      • P(h);P_PINS(I)::P(A)
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