MESON Chess Problem Database

Problem Display
PID: 44867 (bNnb1B2/r7/1p6/2Rnk2N/2P5/2PPP1RB/p7/Q6K w - - 0 1)

Sola, J

Recomm., BCF 043. Ty., 1942-1943

bNnb1B2/r7/1p6/2Rnk2N/2P5/2PPP1RB/p7/Q6K

#2

12 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Ra3
      • 2.Sd7#
    • 1...Ra4
      • 2.Sd7#
    • 1...Ra5
      • 2.Sd7#
    • 1...Ra6
      • 2.Sd7#
    • 1...Rb7
      • 2.Sc6#
      • 2.Rxd5#
    • 1...Rd7
      • 2.Sxd7#
    • 1...Bc6
      • 2.Sxc6#
    • 1...Bb7
      • 2.Sd7#
    • 1...Bg5
      • 2.Rxg5#
    • 1...Bc7
      • 2.Sd7#
      • 2.Rg5#
  • Keys
    • 1.Rc6!
      • threat
        • 2.Re6#
      • 1...Bxc6
        • 2.Sxc6#
      • 1...Sxc3
        • 2.Qxc3#
      • 1...Sxe3
        • 2.Rxe3#
      • 1...Re7
        • 2.Rg5#
      • 1...Sb4
        • 2.cxb4#
      • 1...Sf4
        • 2.exf4#
      • 1...Sf6
        • 2.Rg5#
      • 1...Sc7
        • 2.Sd7#
      • 1...Sde7
        • 2.Bg7#
      • 1...Sd6
        • 2.Bxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 7
  • Sets
    • R(e);N_GUARD::S(K)
    • R(e);N_GUARD::S(K),XR(e)
    • B(f);N_GUARD::S(K),XB(f)
    • B(f);S_CUTR(e)::S(K)
    • B(h);N_GUARD::R(F),XB(h)
  • Actual
    • R(I);N_PINS(b)
    • Threat
      • R1(I)
    • Vars
      • B(f);XR(I)::S(K),XB(f)
      • S(b);OGATE,P_PINR(I),P_SPINS(b),XP(C)::QAB(A),XS(b)
      • S(b);OGATE,P_PINR(I),XP(E)::R(F),XS(b)
      • R(e);S_CUTB(h)::R(F)
      • S(b);OGATE,P_PINR(I)::QAB(A)+P(C),XS(b)
      • S(b);OGATE,P_PINR(I)::P(E),XS(b)
      • S(b);P_PINR(I),S_CUTB(h)::R(F)
      • S(b);P_PINR(I),S_CUTR(e)::S(K)
      • S(b);N_GUARD,P_PINR(I),S_CUTB(h),S_CUTR(e)::B(L)
      • S(g);N_GUARD::B(L),XS(g)
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Developed and maintained by Brian Stephenson.
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