MESON Chess Problem Database

Problem Display
PID: 210354 (8/8/3p4/3p4/1KBkp1N1/3Pp3/1pQ5/bn6 w - - 0 1)

Chernarski, M

Sachova skladba, 2017

8/8/3p4/3p4/1KBkp1N1/3Pp3/1pQ5/bn6

#2

5 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sd2
      • 2.Qc3#
    • 1...Sa3
      • 2.Qc3#
    • 1...Sc3
      • 2.Qxc3#
    • 1...exd3
      • 2.Qxd3#
    • 1...dxc4
      • 2.Qxc4#
  • Tries
    • 1.Bb5?
      • 1...exd3
        • 2.Qxd3#
      • 1...Sd2
        • 2.Qc3#
      • 1...Sa3
        • 2.Qc3#
      • 1...Sc3
        • 2.Qxc3#
      • 1...e2!
    • 1.Ba6?
      • 1...exd3
        • 2.Qxd3#
      • 1...Sd2
        • 2.Qc3#
      • 1...Sa3
        • 2.Qc3#
      • 1...Sc3
        • 2.Qxc3#
      • 1...e2!
    • 1.Qb3?
      • 1...exd3
        • 2.Qxd3#
      • 1...dxc4
        • 2.Qxc4#
      • 1...Sd2
        • 2.Qc3#
      • 1...Sa3
        • 2.Qc3#
      • 1...Sc3
        • 2.Qxc3#
      • 1...e2!
    • 1.dxe4?
      • threat
        • 2.Qd3#
      • 1...dxc4
        • 2.Qxc4#
      • 1...dxe4!
  • Keys
    • 1.Qh2!
      • threat
        • 2.Qh8#
      • 1...exd3
        • 2.Qf4#
      • 1...dxc4
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • S(b);N_GUARD::QAB1(A)
    • S(b);N_GUARD::QAB1(A),XS(b)
    • P(f);OGATE,XP(B)::QAR1(A),XP(f)
    • P(g);OGATE,XB(D)::QAR1(A),XP(g)
  • Tries
    • Try
      • B(D);
      • Vars
        • P(f);OGATE,XP(B)::QAR1(A),XP(f)
        • S(b);N_GUARD::QAB1(A)
        • S(b);N_GUARD::QAB1(A),XS(b)
      • Refutation
        • P(d);
    • Try
      • B(D);
      • Vars
        • P(f);OGATE,XP(B)::QAR1(A),XP(f)
        • S(b);N_GUARD::QAB1(A)
        • S(b);N_GUARD::QAB1(A),XS(b)
      • Refutation
        • P(d);
    • Try
      • Q(A);
      • Vars
        • P(f);OGATE,XP(B)::QAR1(A),XP(f)
        • P(g);OGATE,XB(D)::QAR1(A),XP(g)
        • S(b);N_GUARD::QAB1(A)
        • S(b);N_GUARD::QAB1(A),XS(b)
      • Refutation
        • P(d);
    • Try
      • P(B);XP(f)
      • Threat
        • QAR1(A)
      • Vars
        • P(g);OGATE,XB(D)::QAR1(A),XP(g)
      • Refutation
        • P(g);XP(B)
  • Actual
    • Q(A);
    • Threat
      • QAB(A)
    • Vars
      • P(f);OGATEB,XP(B)::QAR2(A)
      • P(g);OGATEB,XB(D)::QAR2(A),XP(h)
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