MESON Chess Problem Database

Problem Display
PID: 40974 (1r6/8/2bp2N1/N2p3R/n1Pk1P2/7n/1P2Q2K/2r1B3 w - - 0 1)

Howard, David M

Problem Observer, 2002

1r6/8/2bp2N1/N2p3R/n1Pk1P2/7n/1P2Q2K/2r1B3

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qe3#
    • 1...Rb3
      • 2.Sxb3#
    • 1...Ra8
      • 2.Sb3#
    • 1...Rc8
      • 2.Sb3#
    • 1...Rd8
      • 2.Sb3#
    • 1...Re8
      • 2.Sb3#
    • 1...Rf8
      • 2.Sb3#
    • 1...Rg8
      • 2.Sb3#
    • 1...Rh8
      • 2.Sb3#
    • 1...Bb5
      • 2.Sb3#
      • 2.Rxd5#
    • 1...Bb7
      • 2.Sb3#
    • 1...Bd7
      • 2.Rxd5#
    • 1...Be8
      • 2.Rxd5#
    • 1...Sg1
      • 2.Bf2#
    • 1...Sf2
      • 2.Bxf2#
    • 1...Sxf4
      • 2.Bf2#
    • 1...Sg5
      • 2.Bf2#
    • 1...Sc5
      • 2.Sxc6#
    • 1...Sb6
      • 2.Sb3#
    • 1...dxc4
      • 2.Sxc6#
  • Tries
    • 1.Qd3+?
      • 1...Kc5
        • 2.Qe3#
      • 1...Kxd3!
    • 1.Qd2+?
      • 1...Kc5
        • 2.Qe3#
      • 1...Ke4!
  • Keys
    • 1.Sf8!
      • threat
        • 2.Se6#
      • 1...Kc5
        • 2.Qe3#
      • 1...Rxf8
        • 2.Sb3#
      • 1...Sxf4
        • 2.Bf2#
      • 1...Re8
        • 2.Sb3#
      • 1...Bd7
        • 2.Rxd5#
      • 1...Sg5
        • 2.Bf2#
      • 1...Sc5
        • 2.Sxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 12
  • Sets
    • K(d);P_SPINP(e),S_FLIGHT::QAB(C)
    • R(h);N_GUARD::S(G),XR(h)
    • R(h);N_GUARD::S(G)
    • B(f);S_CUTR(h)::S(G)
    • B(f);N_GUARD::R1(H),XP(e)
    • S(b);N_GUARD::B(A)
    • S(b);N_GUARD::B(A),XS(b)
    • S(b);N_GUARD,XP(F)::B(A)
    • S(c);SBLOCK::S(G),XB(f)
    • S(c);S_CUTR(h)::S(G)
    • P(e);XP(E)::S(G),XB(f)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(d);P_SPINP(e),S_FLIGHT::QAB(C)
      • Refutation
        • K(d);P-FLIGHT,XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • K(d);P_SPINP(e),S_FLIGHT::QAB(C)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • S(I);
    • Threat
      • S(I)
    • Vars
      • K(d);P_SPINP(e),S_FLIGHT::QAB(C)
      • R(h);N_GUARD,XS(I)::S(G)
      • S(b);N_GUARD,XP(F)::B(A)
      • R(h);N_GUARD::S(G)
      • B(f);N_GUARD::R1(H),XP(e)
      • S(b);N_GUARD::B(A)
      • S(c);SBLOCK::S(G),XB(f)
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