MESON Chess Problem Database

Problem Display
PID: 143570 (4n2N/8/1Q5p/3r2kb/K2pR1Pp/2B1p2P/4R3/8 w - - 0 1)

Tracy, John F

Dubuque Chess Journal, 1891

4n2N/8/1Q5p/3r2kb/K2pR1Pp/2B1p2P/4R3/8

#2

8 + 8

15 British Chess Magazine 1895
119 Tidskrift for Schack 1909

SOLUTION

  • SOUND
  • Sets
    • 1...Bxg4
      • 2.Qg6#
    • 1...Bg6
      • 2.Qxg6#
    • 1...Bf7
      • 2.Sxf7#
    • 1...Sd6
      • 2.Qd8#
    • 1...d3
      • 2.Qxe3#
  • Keys
    • 1.Rf2!
      • 1...Ra5+
        • 2.Qxa5#
      • 1...Bxg4
        • 2.Qg6#
      • 1...exf2
        • 2.Bd2#
      • 1...dxc3
        • 2.Qxe3#
      • 1...Rb5
        • 2.Qxb5#
      • 1...Rc5
        • 2.Qxc5#
      • 1...Re5
        • 2.Rxe5#
      • 1...Rf5
        • 2.Rxf5#
      • 1...Rd6
        • 2.Rf5#
        • 2.Re5#
      • 1...Rd7
        • 2.Rf5#
        • 2.Re5#
      • 1...Rd8
        • 2.Rf5#
        • 2.Re5#
      • 1...Bg6
        • 2.Qxg6#
      • 1...Bf7
        • 2.Sxf7#
      • 1...Sd6
        • 2.Qd8#
      • 1...Sf6
        • 2.Qxf6#
      • 1...Sc7
        • 2.Qf6#
      • 1...Sg7
        • 2.Qf6#
      • 1...e2
        • 2.Bd2#
      • 1...d3
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • B(f);N_GUARD,XP(F)::QAR1(G)
    • B(f);N_GUARD::QAR1(G),XB(f)
    • B(f);N_GUARD::S(H),XB(f)
    • S(h);N_GUARD,S_CUTR(d)::QAB(G)
    • P(b);OGATE::QAB(G),XP(a)
  • Actual
    • R(A);
    • Vars
      • R(d);CHECK,OGATEB::QAR(G),XR(d)
      • B(f);N_GUARD,XP(F)::QAR1(G)
      • P(a);OGATEB,XR(A)::B(B)
      • P(b);OGATE,XB(B)::QAB(G),XP(a)
      • R(d);OGATEB::QAR(G),XR(d)
      • R(d);N_GUARD::R(E),XR(d)
      • R(d);N_GUARD::R1(A),XR(d)
      • B(f);N_GUARD::QAR1(G),XB(f)
      • B(f);N_GUARD::S(H),XB(f)
      • S(h);N_GUARD,S_CUTR(d)::QAB(G)
      • S(h);N_GUARD::QAB1(G),XS(h)
      • S(h);N_GUARD::QAB1(G)
      • P(a);OGATEB::B(B)
      • P(b);OGATE::QAB(G),XP(a)
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