MESON Chess Problem Database

Problem Display
PID: 52061 (8/8/B2p4/2p1k1K1/r2R1N2/3Pp3/b5nB/8 w - - 0 1)

Gonyayev, Mikhail

Vecherni Ilustra, 1874

8/8/B2p4/2p1k1K1/r2R1N2/3Pp3/b5nB/8

#2

6 + 7

5283 Horizon 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Ra3
      • 2.Re4#
    • 1...Rc4
      • 2.Rd5#
    • 1...Ra5
      • 2.Re4#
    • 1...Rxa6
      • 2.Re4#
    • 1...Bb1
      • 2.Rd5#
    • 1...Bc4
      • 2.Re4#
    • 1...Bd5
      • 2.Rxd5#
    • 1...c4
      • 2.Re4#
      • 2.Rd5#
  • Keys
    • 1.Bc4!
      • threat
        • 2.Re4#
        • 2.Rd5#
      • 1...Kxd4
        • 2.Se2#
      • 1...Rxc4
        • 2.Rd5#
      • 1...Bxc4
        • 2.Re4#
      • 1...Sxf4
        • 2.Re4#
      • 1...cxd4
        • 2.Sxg2#
        • 2.Sg6#
      • 1...d5
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • R(d);N_GUARD::R1(C)
    • R(d);S_CUTB(a)::R1(C)
    • R(d);N_GUARD,XB(F)::R1(C)
    • B(a);N_GUARD::R1(C)
    • B(a);S_CUTR(d)::R1(C)
    • B(a);N_GUARD::R1(C),XB(a)
  • Actual
    • B(F);
    • Threat
      • DUALS(2)
    • Vars
      • K(f);S_FLIGHT,XR(C)::S(D)
      • R(d);XB(F)::R1(C)
      • B(a);XB(F)::R1(C)
      • S(b);P_SPINS(b),XS(D)::R1(C)
      • P(g);::R1(C),XP(g)
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