MESON Chess Problem Database

Problem Display
PID: 166236 (4b3/3rp3/8/r3N1bp/2Q1Pk2/5N1K/2n4n/1B3RB1 w - - 0 1)

Burda, Josef

Sachove umeni (Ceskoslovensky sach), 2015

4b3/3rp3/8/r3N1bp/2Q1Pk2/5N1K/2n4n/1B3RB1

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe5
      • 2.Sxh2#
    • 1...Rd3
      • 2.Sxd3#
    • 1...Ra7
      • 2.Sd3#
    • 1...Rb7
      • 2.Sd3#
    • 1...Rc7
      • 2.Sd3#
    • 1...Bg6
      • 2.Sxg6#
    • 1...Se3
      • 2.Bxh2#
    • 1...Sd4
      • 2.Qc1#
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qf5#
      • 1...Kxe4
        • 2.Sxg5#
      • 1...Rxe5
        • 2.Qxe5#
      • 1...Bg6
        • 2.Sxg6#
      • 1...Se3
        • 2.Bxh2#
      • 1...Sd4
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • R(d);SBLOCK,XS(H)::R(B)+S(D),XS(b)
    • R(g);N_GUARD,P_PINS(D)::S(H),XR(g)
    • R(g);N_GUARD::S(H)
    • B(i);N_GUARD::S(H),XB(i)
    • S(a);SBLOCK::B(C),XS(b)
    • S(a);OGATE::QAB(F)
  • Actual
    • Q(F);
    • Threat
      • QAR1(F)
    • Vars
      • K(c);P-FLIGHT,P_SPINS(a),XP(G)::S(D),XB(e)
      • R(d);OGATE,XS(H)::QAB1(F),XR(d)
      • B(i);N_GUARD::S(H),XB(i)
      • S(a);SBLOCK::B(C),XS(b)
      • S(a);S_CUTR(g)::S(H)
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