MESON Chess Problem Database

Problem Display
PID: 47570 (B7/8/Q2rn3/N1N1kpB1/1PR1pp1K/8/2n5/2r1R3 w - - 0 1)

Mazzoni, G

Themes-64, 1956

B7/8/Q2rn3/N1N1kpB1/1PR1pp1K/8/2n5/2r1R3

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Qxe6#
    • 1...Rd2
      • 2.Qxe6#
    • 1...Rd3
      • 2.Sxd3#
      • 2.Qxe6#
    • 1...Rd4
      • 2.Qxe6#
    • 1...Rd5
      • 2.Qxe6#
    • 1...Rd7
      • 2.Sxd7#
      • 2.Qxe6#
    • 1...Rd8
      • 2.Qxe6#
    • 1...Scd4
      • 2.Sd3#
  • Keys
    • 1.Rd4!
      • threat
        • 2.Qxd6#
      • 1...Kxd4
        • 2.Bf6#
      • 1...Rxd4
        • 2.Qxe6#
      • 1...Rxa6
        • 2.Rd5#
      • 1...Scxd4
        • 2.Sd3#
      • 1...Sexd4
        • 2.Sc4#
      • 1...Rd5
        • 2.Rxd5#
      • 1...Rb6
        • 2.Rd5#
      • 1...Rc6
        • 2.Sxc6#
      • 1...Rd7
        • 2.Sc6#
      • 1...Rd8
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • R(g);OGATE::QAR1(H),XS(h)
    • S(b);S_CUTR(g)::S(F)
  • Actual
    • R(C);
    • Threat
      • QAB1(H),XR(g)
    • Vars
      • K(e);N_SPINP(c),S_FLIGHT,XR(C)::B(G)
      • R(g);OGATE,SBLOCK,XR(C)::QAR1(H),XS(h)
      • R(g);N_GUARD,XQ(H)::R1(C)
      • S(b);SBLOCK,XR(C)::S(F)
      • S(h);SBLOCK,XR(C)::S(E)
      • R(g);N_GUARD::R1(C),XR(g)
      • R(g);N_GUARD::R1(C)
      • R(g);N_GUARD::S(E),XR(g)
      • R(g);N_GUARD::S(E)
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