MESON Chess Problem Database

Problem Display
PID: 147676 (K7/1p1n3B/NrP1R1r1/4p3/3B2R1/1Ppkpp2/1b1p1q2/3Q4 w - - 0 1)

Morse, Christopher Jeremy

Problem Observer, 2011

K7/1p1n3B/NrP1R1r1/4p3/3B2R1/1Ppkpp2/1b1p1q2/3Q4

#2

9 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Rb4
      • 2.Sxb4#
    • 1...Rxc6
      • 2.Sb4#
    • 1...Sc5
      • 2.Sxc5#
    • 1...Sf6
      • 2.Sc5#
    • 1...Sb8
      • 2.Sc5#
    • 1...Sf8
      • 2.Sc5#
    • 1...exd4
      • 2.Bxg6#
  • Keys
    • 1.Rd6!
      • threat
        • 2.Bc5#
        • 2.Bxe5#
        • 2.Bxb6#
      • 1...Rxa6+
        • 2.Ba7#
      • 1...Rxb3
        • 2.Bc5#
        • 2.Bxe5#
        • 2.Bb6#
        • 2.Ba7#
      • 1...Rxc6
        • 2.Sb4#
      • 1...exd4
        • 2.Bxg6#
        • 2.Rgxd4#
        • 2.Rdxd4#
      • 1...Rb4
        • 2.Sxb4#
      • 1...Rb5
        • 2.Bc5#
      • 1...Ba3
        • 2.Bc5#
      • 1...Sc5
        • 2.Sxc5#
        • 2.Bxc5#
        • 2.Bxe5#
      • 1...Sf6
        • 2.Sc5#
      • 1...c2
        • 2.Bxb2#
      • 1...e2
        • 2.Bxf2#
      • 1...e4
        • 2.Bf6#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 4
  • Sets
    • R(i);N_GUARD::S(E),XR(i)
    • R(i);N_GUARD,XP(F)::S(E)
    • S(l);N_GUARD::S(E),XS(l)
    • S(l);N_GUARD::S(E)
    • P(h);N_GUARD,XB(C)::B(H),XR(j)
  • Actual
    • R(G);
    • Threat
      • DUALS(3)
    • Vars
      • R(i);CHECK,OGATE,XS(E)::R(G)+B(C)
      • R(i);N_GUARD,XP(F)::S(E)
      • R(i);N_GUARD::S(E),XR(i)
      • R(i);::R(G)+B(C)
      • B(a);::R(G)+B(C)
      • S(l);N_GUARD::S(E)
      • P(d);OGATE::R(G)+B(C),XB(a)
      • P(f);OGATE::R(G)+B(C),XQ(c)
      • P(h);N_SPINR(j),OGATE::R(G)+B(C)
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