MESON Chess Problem Database

Problem Display
PID: 69275 (KB3Nn1/7Q/8/1prkN3/1prP4/1P2P3/2R3b1/2RB4 w - - 0 1)

Colpa, Johannes J

Tijdschrift vd NSB, 1897

KB3Nn1/7Q/8/1prkN3/1prP4/1P2P3/2R3b1/2RB4

#2

11 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd4
      • 2.Rxc5#
    • 1...Bf1
      • 2.Bf3#
    • 1...Bh1
      • 2.Qxh1#
    • 1...Bf3
      • 2.Bxf3#
    • 1...Bh3
      • 2.Bf3#
    • 1...Be4
      • 2.Qxg8#
      • 2.Qd7#
      • 2.Qf7#
  • Tries
    • 1.e4+?
      • 1...Bxe4
        • 2.Qd7#
      • 1...Kxd4!
  • Keys
    • 1.Sc6!
      • 1...Kxc6
        • 2.Qb7#
      • 1...Rxc2
        • 2.Sxb4#
      • 1...Rxd4
        • 2.Rxc5#
      • 1...Rxc6
        • 2.Qf5#
      • 1...Rc3
        • 2.Sxb4#
      • 1...Bf1
        • 2.Bf3#
      • 1...Bh1
        • 2.Qxh1#
      • 1...Bf3
        • 2.Bxf3#
      • 1...Bh3
        • 2.Bf3#
      • 1...Be4
        • 2.Qd7#
      • 1...Sf6
        • 2.Se7#
      • 1...Sh6
        • 2.Se7#
      • 1...Se7
        • 2.Sxe7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • R(c);OGATE,XP(F)::R1(C),XR(e)
    • B(a);N_GUARD::B(B)
    • B(a);OGATEB::QAB(H),XB(a)
    • B(a);N_GUARD::B(B),XB(a)
  • Tries
    • Try
      • P(E);CHECK
      • Vars
        • B(a);SBLOCK,XP(E)::QAR2(H)
      • Refutation
        • K(f);P-FLIGHT,P_PINP(E),XP(F)
  • Actual
    • S(G);
    • Vars
      • K(f);OGATEB,S_FLIGHT,XS(G)::QAB1(H)
      • R(c);N_GUARD,XR(C)::S(G),XP(b)
      • R(c);OGATE,XP(F)::R1(C),XR(e)
      • R(e);SBLOCK,XS(G)::QAR2(H)
      • R(c);N_GUARD::S(G),XP(b)
      • B(a);N_GUARD::B(B)
      • B(a);OGATEB::QAB(H),XB(a)
      • B(a);N_GUARD::B(B),XB(a)
      • B(a);SBLOCK::QAR2(H)
      • S(g);N_GUARD::S(G)
      • S(g);N_GUARD::S(G),XS(g)
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