MESON Chess Problem Database

Problem Display
PID: 159156 (8/4Kp2/4b2r/1pR1p1p1/1P2kr2/1p2N2P/5RP1/2BQ4 w - - 0 1)

Akhaladze, Beka

ChessStar, 2013

8/4Kp2/4b2r/1pR1p1p1/1P2kr2/1p2N2P/5RP1/2BQ4

#2

9 + 9

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Bxh3
      • 2.Qd5#
    • 1...Bg4
      • 2.Qd5#
    • 1...Bd5
      • 2.Qxd5#
    • 1...Bf5
      • 2.Qd5#
    • 1...Bd7
      • 2.Qd5#
    • 1...Bc8
      • 2.Qd5#
  • Tries
    • 1.Rd5?
      • threat
        • 2.Qd3#
      • 1...Bxd5
        • 2.Qxd5#
      • 1...Rf3
        • 2.Qxf3#
      • 1...Rxf2!
    • 1.Qf3+?
      • 1...Kd3
        • 2.Rd2#
      • 1...Kd4
        • 2.Rd2#
      • 1...Rxf3!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Sg3#
        • 2.Sd6#
      • 1...Kxf5
        • 2.Qd3#
      • 1...Rxf5
        • 2.Re2#
      • 1...Rxh3
        • 2.Sd6#
      • 1...Bxf5
        • 2.Re2#
        • 2.Qd5#
      • 1...Rf3
        • 2.Sd6#
        • 2.Qxf3#
      • 1...Rg4
        • 2.Sd6#
        • 2.Qe2#
        • 2.Qf3#
      • 1...Bc4
        • 2.Sg3#
      • 1...Bd5
        • 2.Sg3#
      • 1...Bd7
        • 2.Sg3#
      • 1...Bc8
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • B(g);N_GUARD,XP(F)::QAB1(B)
    • B(g);N_GUARD::QAB1(B)
    • B(g);N_GUARD::QAB1(B),XB(g)
  • Tries
    • Try
      • R(H);
      • Threat
        • QAB1(B)
      • Vars
        • B(g);OGATE,XR(H)::QAB1(B),XB(g)
        • R(c);N_GUARD::QAB1(B),XR(c)
      • Refutation
        • R(c);XR(C)
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);S_FLIGHT::R1(C)
        • K(b);P-FLIGHT::R(C)
      • Refutation
        • R(c);XQ(B)
  • Actual
    • S(E);
    • Threat
      • DUALS(2)
    • Vars
      • K(b);P_SPINP(e),P_SPINR(c),S_FLIGHT,XS(E)::QAB(B)
      • R(c);SBLOCK,XS(E)::R(C)
      • R(h);XP(F)::S(E)
      • B(g);::S(E)
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