MESON Chess Problem Database

Problem Display
PID: 225334 (8/8/1p1P2p1/bP1PpNp1/1nP1k1p1/1K4P1/5QP1/4N3 w - - 0 1)

Kovacik, Jozef

Praca Prvotina, 1956

8/8/1p1P2p1/bP1PpNp1/1nP1k1p1/1K4P1/5QP1/4N3

#2

10 + 8

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sa2
      • 2.Qc2#
    • 1...Sc2
      • 2.Qxc2#
    • 1...Sxd5
      • 2.Qc2#
    • 1...Sa6
      • 2.Qc2#
    • 1...Sc6
      • 2.Qc2#
  • Tries
    • 1.Qf1?
      • 1...Sxd5
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sa2
        • 2.Qd3#
      • 1...Sc2
        • 2.Qd3#
      • 1...Sa6
        • 2.Qd3#
      • 1...Sc6
        • 2.Qd3#
      • 1...gxf5!
    • 1.Qc2+?
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sxc2!
  • Keys
    • 1.Sf3!
      • 1...Kd3
        • 2.Qe3#
      • 1...Kxf5
        • 2.Sd2#
      • 1...Sxd5
        • 2.Qc2#
      • 1...gxf3
        • 2.Qxf3#
      • 1...gxf5
        • 2.Qe2#
      • 1...Sd3
        • 2.Sxg5#
      • 1...Sa2
        • 2.Qc2#
      • 1...Sc2
        • 2.Qxc2#
      • 1...Sa6
        • 2.Qc2#
      • 1...Sc6
        • 2.Qc2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAB(B)
    • S(a);N_GUARD::QAB(B),XS(a)
    • S(a);N_GUARD,XP(H)::QAB(B)
  • Tries
    • Try
      • Q(B);
      • Vars
        • S(a);N_GUARD,XP(H)::QAB1(B)
        • S(a);N_GUARD::QAB1(B),XS(a)
        • S(a);N_GUARD::QAB1(B)
      • Refutation
        • P(h);XS(I)
    • Try
      • Q(B);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAB1(B),XS(a)
      • Refutation
        • S(a);XQ(B)
  • Actual
    • S(A);
    • Vars
      • K(b);S_FLIGHT::QAR1(B)
      • K(b);S_FLIGHT,XS(I)::QAR(B)+S(A)
      • S(a);N_GUARD,XP(H)::QAB(B)
      • P(c);OGATE,XS(A)::QAB1(B),XP(c)
      • P(h);SBLOCK,XS(I)::QAR2(B)
      • S(a);SBLOCK::S(A),XP(f)
      • S(a);N_GUARD::QAB(B)
      • S(a);N_GUARD::QAB(B),XS(a)
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