MESON Chess Problem Database

Problem Display
PID: 229426 (8/7q/2R5/3Nk3/8/2Kp1Q2/8/8 w - - 0 1)

Farion, Petro Petrovich

Sachova skladba, 2002

8/7q/2R5/3Nk3/8/2Kp1Q2/8/8

#2

4 + 3

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sb6?
      • threat
        • 2.Sc4#
      • 1...Qe4
        • 2.Qf6#
      • 1...Qg8
        • 2.Sd7#
      • 1...Qh4
        • 2.Sd7#
      • 1...Qf7!
    • 1.Sf6?
      • threat
        • 2.Sg4#
      • 1...Qe4
        • 2.Qxe4#
      • 1...Qg6
        • 2.Sd7#
      • 1...Qg8
        • 2.Sd7#
        • 2.Qe4#
      • 1...Qh3
        • 2.Qe4#
      • 1...Qh4
        • 2.Sd7#
      • 1...Qh5
        • 2.Sd7#
        • 2.Qe4#
      • 1...Qd7
        • 2.Sxd7#
        • 2.Qe4#
      • 1...Qg7
        • 2.Qe4#
      • 1...Qf5!
    • 1.Qe3+?
      • 1...Kxd5
        • 2.Qe6#
      • 1...Kf5
        • 2.Qf4#
      • 1...Qe4!
    • 1.Qf6+?
      • 1...Kxd5
        • 2.Qe6#
      • 1...Ke4!
  • Keys
    • 1.Se3!
      • threat
        • 2.Sc4#
        • 2.Sg4#
      • 1...Qe4
        • 2.Qf6#
      • 1...Qf5
        • 2.Sc4#
        • 2.Qxf5#
      • 1...Qg6
        • 2.Sc4#
      • 1...Qg8
        • 2.Qf5#
      • 1...Qh3
        • 2.Sc4#
      • 1...Qh4
        • 2.Qf5#
      • 1...Qh5
        • 2.Sc4#
      • 1...Qd7
        • 2.Sc4#
      • 1...Qf7
        • 2.Sg4#
      • 1...Qg7
        • 2.Sc4#
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • Q(c);SBLOCK::QAB1(B)
        • Q(c);N_GUARD::S(C)
      • Refutation
        • Q(c);
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • Q(c);N_GUARD::QAR1(B),XQ(c)
        • Q(c);N_GUARD::S(C)
        • Q(c);N_GUARD::QAR1(B)
      • Refutation
        • Q(c);
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);OGATE,P-FLIGHT,XS(C)::QAB1(B)
        • K(b);P-FLIGHT::QAR1(B)
      • Refutation
        • Q(c);P_SPINQ(c)
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);P-FLIGHT,XS(C)::QAB1(B)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • S(C);
    • Threat
      • DUALS(2)
    • Vars
      • Q(c);SBLOCK::QAB1(B)
      • Q(c);::S(C)
      • Q(c);N_GUARD::QAR1(B)
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