MESON Chess Problem Database

Problem Display
PID: 241234 (KB6/8/p3r2r/N2k4/1Q1p2B1/8/1n1N4/8 w - - 0 1)

Paslack, Rainer

Sachsische Zeitung, 2011

KB6/8/p3r2r/N2k4/1Q1p2B1/8/1n1N4/8

#2

6 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Qc4#
    • 1...Sd3
      • 2.Qc4#
    • 1...Sa4
      • 2.Qc4#
    • 1...Sc4
      • 2.Qxc4#
  • Tries
    • 1.Sdb3?
      • threat
        • 2.Qxd4#
      • 1...Ke4
        • 2.Qxd4#
      • 1...Re4
        • 2.Qc5#
      • 1...d3
        • 2.Qd4#
      • 1...Sc4!
    • 1.Qb3+?
      • 1...Sc4
        • 2.Qxc4#
      • 1...Kc5!
    • 1.Qb7+?
      • 1...Kc5
        • 2.Sdb3#
        • 2.Sab3#
      • 1...Rc6!
  • Keys
    • 1.Sab3!
      • threat
        • 2.Qc5#
      • 1...Kc6
        • 2.Qb7#
      • 1...Rc6
        • 2.Qxd4#
      • 1...Sd3
        • 2.Qc4#
      • 1...Sa4
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • S(a);N_GUARD::QAB1(B)
    • S(a);N_GUARD::QAB1(B),XS(a)
  • Tries
    • Try
      • S(A);
      • Threat
        • QAR1(B),XP(b)
      • Vars
        • K(c);P_SPINP(b),S_FLIGHT::QAR1(B),XP(b)
        • R(e);SBLOCK::QAR1(B)
        • P(b);::QAR1(B)
      • Refutation
        • S(a);
    • Try
      • Q(B);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAB1(B),XS(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Refutation
        • R(e);P_SPINR(e)
  • Actual
    • S(D);
    • Threat
      • QAR1(B)
    • Vars
      • K(c);S_FLIGHT::QAB1(B)
      • R(e);SBLOCK::QAR1(B),XP(b)
      • S(a);N_GUARD::QAB1(B)
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