MESON Chess Problem Database

Problem Display
PID: 211366 (3b1NB1/B3p3/2NpP2K/1Ppk3P/4r3/3P4/8/5R2 w - - 0 1)

Beal, Edward W

The Problemist, 1986

3b1NB1/B3p3/2NpP2K/1Ppk3P/4r3/3P4/8/5R2

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Ra4
      • 2.Rf5#
    • 1...Rb4
      • 2.Rf5#
    • 1...Rc4
      • 2.Rf5#
    • 1...Rd4
      • 2.Rf5#
    • 1...Rg4
      • 2.Rf5#
    • 1...Rh4
      • 2.Rf5#
    • 1...Rxe6+
      • 2.Bxe6#
  • Keys
    • 1.Sg6!
      • 1...Rxe6
        • 2.Rf5#
      • 1...Re1
        • 2.Sf4#
      • 1...Re2
        • 2.Sf4#
      • 1...Re3
        • 2.Sf4#
      • 1...Ra4
        • 2.Rf5#
      • 1...Rb4
        • 2.Rf5#
      • 1...Rc4
        • 2.Rf5#
      • 1...Rd4
        • 2.Rf5#
      • 1...Rf4
        • 2.Sxf4#
      • 1...Rg4
        • 2.Rf5#
      • 1...Rh4
        • 2.Rf5#
      • 1...Re5
        • 2.Sf4#
      • 1...Ba5
        • 2.Sgxe7#
      • 1...Bb6
        • 2.Sgxe7#
      • 1...Bc7
        • 2.Sgxe7#
      • 1...c4
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • R(a);N_GUARD::R(A)
    • R(a);N_GUARD,P_PINP(D)::R(A)
    • R(a);CHECK,OGATE,P_SPINR(a),XP(F)::B(J),XR(a)
  • Actual
    • S(I);
    • Vars
      • R(a);N_GUARD,P_PINS(I),P_SPINR(a),XP(F)::R(A)
      • R(a);N_GUARD::S(I)
      • R(a);N_GUARD::R(A)
      • R(a);N_GUARD::S(I),XR(a)
      • R(a);N_GUARD,P_PINP(D)::R(A)
      • B(f);N_GUARD::S(I),XP(e)
      • P(b);N_GUARD,S_CUTR(a)::S(E)
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