MESON Chess Problem Database

Problem Display
PID: 11481 (5Rb1/2p3r1/3pp1Rp/2N1k3/1Q2P2N/B1pp4/4p1K1/3rb1n1 w - - 0 1)

Dixon, Hugh F

Chess, 1939

5Rb1/2p3r1/3pp1Rp/2N1k3/1Q2P2N/B1pp4/4p1K1/3rb1n1

#2

8 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Sxd3#
    • 1...Rb1
      • 2.Sxd3#
    • 1...Rc1
      • 2.Sxd3#
    • 1...Rd2
      • 2.Qxc3#
    • 1...Rxg6+
      • 2.Sxg6#
    • 1...Rd7
      • 2.Sxd7#
    • 1...Bd2
      • 2.Sxd3#
    • 1...Bg3
      • 2.Qxc3#
    • 1...Bxh4
      • 2.Qxc3#
    • 1...Sf3
      • 2.Sxf3#
    • 1...Sh3
      • 2.Sf3#
    • 1...d2
      • 2.Sd3#
      • 2.Qxc3#
  • Keys
    • 1.Bc1!
      • threat
        • 2.Bf4#
      • 1...Rxg6+
        • 2.Sxg6#
      • 1...Rxc1
        • 2.Sxd3#
      • 1...Rd2
        • 2.Qxc3#
      • 1...Rf7
        • 2.Rxe6#
      • 1...Bd2
        • 2.Sxd3#
      • 1...Bg3
        • 2.Qxc3#
      • 1...Bf7
        • 2.Sd7#
      • 1...Sh3
        • 2.Sf3#
      • 1...d2
        • 2.Sd3#
        • 2.Qxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • R(a);N_GUARD::S(F),XP(f)
    • R(a);S_CUTB(b)::QAB(C),XP(e)
    • R(l);CHECK,XR(G)::S(E),XR(l)
    • R(l);N_GUARD,N_PINR(G)::S(F),XR(l)
    • B(b);S_CUTR(a)::S(F),XP(f)
    • B(b);N_GUARD,N_PINR(G)::QAB(C),XP(e)
    • B(b);N_GUARD,XS(E)::QAB(C),XP(e)
    • S(c);N_GUARD::S(E),XS(c)
    • S(c);N_GUARD::S(E)
  • Actual
    • B(B);
    • Threat
      • B(B)
    • Vars
      • R(l);CHECK,XR(G)::S(E),XR(l)
      • R(a);N_GUARD,XB(B)::S(F),XP(f)
      • R(a);S_CUTB(b)::QAB(C),XP(e)
      • R(l);N_PINR(G)::R1(G),XP(i)
      • B(b);S_CUTR(a)::S(F),XP(f)
      • B(b);N_GUARD,N_PINR(G)::QAB(C),XP(e)
      • B(m);S_CUTR(l)::S(F)
      • S(c);N_GUARD::S(E)
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