MESON Chess Problem Database

Problem Display
PID: 135107 (6b1/8/4n2b/4p2r/2N1R2p/3P1k1B/K3pPRp/4B2N w - - 0 1)

Matthews, Robin CO

The Problemist, 1946

6b1/8/4n2b/4p2r/2N1R2p/3P1k1B/K3pPRp/4B2N

#2

9 + 9

14609 Mostly Three=Movers 1995

SOLUTION

  • SOUND
  • Sets
    • 1...Rg5
      • 2.Sd2#
    • 1...Bd2
      • 2.Sxd2#
    • 1...Bg5
      • 2.Sxe5#
    • 1...Bg7
      • 2.Sd2#
    • 1...Bf8
      • 2.Sd2#
    • 1...Sf4
      • 2.Re3#
  • Tries
    • 1.Rxh2?
      • threat
        • 2.Bg2#
        • 2.Bg4#
      • 1...Rg5
        • 2.Sd2#
      • 1...Sf4
        • 2.Re3#
      • 1...Bf4!
    • 1.Rgg4?
      • threat
        • 2.Bg2#
      • 1...Sf4
        • 2.Re3#
      • 1...Bf4!
    • 1.Rg5?
      • threat
        • 2.Sd2#
        • 2.Sxe5#
        • 2.Bg2#
      • 1...Rxg5
        • 2.Sd2#
      • 1...Bxg5
        • 2.Sxe5#
      • 1...Bg7
        • 2.Sd2#
        • 2.Bg2#
      • 1...Sd4
        • 2.Bg2#
      • 1...Sf4
        • 2.Re3#
      • 1...Sc5
        • 2.Bg2#
      • 1...Sc7
        • 2.Bg2#
      • 1...Sg7
        • 2.Bg2#
      • 1...Sd8
        • 2.Bg2#
      • 1...Sf8
        • 2.Bg2#
      • 1...Sxg5!
    • 1.Rxg8?
      • threat
        • 2.Bg2#
      • 1...Rg5
        • 2.Sd2#
      • 1...Bg5
        • 2.Sxe5#
      • 1...Bg7
        • 2.Sd2#
      • 1...Sf4
        • 2.Sd2#
        • 2.Re3#
      • 1...Sg5
        • 2.Sd2#
        • 2.Sxe5#
      • 1...Sg7!
  • Keys
    • 1.Rg6!
      • threat
        • 2.Bg2#
      • 1...Rg5
        • 2.Sd2#
      • 1...Bg5
        • 2.Sxe5#
      • 1...Sf4
        • 2.Re3#
      • 1...Sg5
        • 2.Rf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • R(f);S_CUTB(h)::S(H)
    • B(h);N_GUARD::S(H),XB(h)
    • B(h);S_CUTR(f)::S(H),XP(e)
    • B(h);N_GUARD::S(H)
    • S(g);P_PINS(H),SBLOCK,S_CUTB(h)::R1(I)
  • Tries
    • Try
      • R(E);XP(b)
      • Threat
        • DUALS(2)
      • Vars
        • R(f);S_CUTB(h)::S(H)
        • S(g);P_PINS(H),SBLOCK,S_CUTB(h)::R1(I)
      • Refutation
        • B(h);
    • Try
      • R(E);
      • Threat
        • B(G)
      • Vars
        • S(g);P_PINS(H),S_CUTB(h)::R1(I)
      • Refutation
        • B(h);
    • Try
      • R(E);
      • Threat
        • DUALS(3)
      • Vars
        • R(f);XR(E)::S(H)
        • B(h);XR(E)::S(H),XP(e)
        • S(g);P_PINS(H)::B(G)
        • S(g);P_PINS(H),SBLOCK::R1(I)
      • Refutation
        • S(g);P_PINS(H),XR(E)
    • Try
      • R(E);XB(i)
      • Threat
        • B(G)
      • Vars
        • R(f);S_CUTB(h)::S(H)
        • B(h);S_CUTR(f)::S(H),XP(e)
        • B(h);N_GUARD::S(H)
      • Refutation
        • S(g);
  • Actual
    • R(E);
    • Threat
      • B(G)
    • Vars
      • R(f);S_CUTB(h)::S(H)
      • B(h);S_CUTR(f)::S(H),XP(e)
      • S(g);P_PINS(H),SBLOCK,S_CUTB(h)::R1(I)
      • S(g);N_GUARD,P_PINS(H),S_CUTB(h),S_CUTR(f)::R(E)
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