MESON Chess Problem Database

Problem Display
PID: 210365 (8/6n1/R7/3k4/2p3N1/8/1PQPNK2/5n2 w - - 0 1)

Chernarski, M

Sachova skladba, 2017

8/6n1/R7/3k4/2p3N1/8/1PQPNK2/5n2

#2

7 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Sf5
      • 2.Qxf5#
    • 1...Sh5
      • 2.Qf5#
    • 1...Se6
      • 2.Qf5#
    • 1...Se8
      • 2.Qf5#
  • Tries
    • 1.Sf6+?
      • 1...Ke5
        • 2.Qe4#
      • 1...Kc5!
    • 1.Qa4?
      • threat
        • 2.Qc6#
      • 1...Kc5
        • 2.Qa5#
      • 1...Ke4!
    • 1.Qg6?
      • threat
        • 2.Ra5#
        • 2.Qc6#
      • 1...Sf5
        • 2.Qxf5#
        • 2.Qc6#
      • 1...c3
        • 2.Qc6#
      • 1...Se6
        • 2.Qf5#
      • 1...Kc5!
    • 1.d4?
      • threat
        • 2.Sf6#
      • 1...cxd4 ep
        • 2.Qc6#
      • 1...Sh5
        • 2.Qf5#
      • 1...Se8
        • 2.Qf5#
      • 1...c3!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Qd4#
        • 2.Qe5#
      • 1...Ke4
        • 2.Qf3#
      • 1...Kc5
        • 2.Qa5#
      • 1...Sf5
        • 2.Qe5#
      • 1...Se6
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • S(d);N_GUARD::QAR2(B),XS(d)
    • S(d);N_GUARD::QAR2(B)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(B)
      • Refutation
        • K(c);P-FLIGHT,P_SPINP(b)
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • K(c);P-FLIGHT::QAR2(B)
      • Refutation
        • K(c);P_SPINP(b),S_FLIGHT
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::QAB1(B)
        • S(d);N_GUARD::QAR2(B)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • P(C);
      • Threat
        • S(F)
      • Vars
        • P(b);EP,OGATE,XP(C)::QAB1(B)
        • S(d);N_GUARD::QAR2(B)
      • Refutation
        • P(b);
  • Actual
    • Q(B);
    • Threat
      • DUALS(2)
    • Vars
      • K(c);S_FLIGHT::QAB1(B)
      • K(c);P-FLIGHT,P_SPINP(b)::QAR2(B)
      • S(d);::QAR1(B)
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