MESON Chess Problem Database

Problem Display
PID: 222924 (B1N5/1Pp5/8/rnrk1PR1/2p2K1Q/2p2pp1/2N5/8 w - - 0 1)

Chocolous, Jiri

Lusatia, 1885

B1N5/1Pp5/8/rnrk1PR1/2p2K1Q/2p2pp1/2N5/8

#2

8 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.b8S#
    • 1...Sd4
      • 2.Sb4#
    • 1...Sd6
      • 2.Se7#
  • Tries
    • 1.Se3+?
      • 1...Kc6
        • 2.b8S#
      • 1...Kd4!
    • 1.Qxg3?
      • threat
        • 2.Qxf3#
      • 1...Kc6
        • 2.b8S#
      • 1...Sd4
        • 2.Sb4#
      • 1...Sd6
        • 2.Se7#
      • 1...f2
        • 2.Qg2#
        • 2.Qf3#
      • 1...Rc6!
    • 1.Qh5?
      • threat
        • 2.Qxf3#
      • 1...Kc6
        • 2.b8S#
      • 1...Sd4
        • 2.Sb4#
      • 1...Sd6
        • 2.Se7#
      • 1...f2
        • 2.Qf3#
      • 1...Rc6!
    • 1.Qh6?
      • threat
        • 2.Se7#
        • 2.Qe6#
      • 1...Sd6
        • 2.Se7#
      • 1...Ra6
        • 2.Se7#
      • 1...Sd4
        • 2.Se3#
        • 2.Sb4#
        • 2.Se7#
      • 1...Rc6!
    • 1.Qh8?
      • threat
        • 2.Sb4#
      • 1...Kc6
        • 2.b8S#
      • 1...Rc6
        • 2.Qe5#
      • 1...Ra4!
    • 1.f6+?
      • 1...Kc6
        • 2.b8S#
      • 1...Ke6!
  • Keys
    • 1.Qg4!
      • threat
        • 2.Qxf3#
      • 1...Kc6
        • 2.b8S#
      • 1...Rc6
        • 2.f6#
      • 1...Sd4
        • 2.Sb4#
      • 1...Sd6
        • 2.Se7#
      • 1...f2
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(h);S_FLIGHT::P=S
    • S(f);SBLOCK::S(A)
    • S(f);SBLOCK::S(H)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(h);S_FLIGHT::P=S
      • Refutation
        • K(h);P-FLIGHT
    • Try
      • Q(C);XP(c)
      • Threat
        • QAB(C),XP(b)
      • Vars
        • K(h);S_FLIGHT::P=S
        • S(f);SBLOCK::S(A)
        • S(f);SBLOCK::S(H)
      • Refutation
        • R(g);
    • Try
      • Q(C);
      • Threat
        • QAB(C),XP(b)
      • Vars
        • K(h);S_FLIGHT::P=S
        • S(f);SBLOCK::S(A)
        • S(f);SBLOCK::S(H)
        • P(b);::QAB(C)
      • Refutation
        • R(g);
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(f);::S(H)
        • R(e);::S(H)
      • Refutation
        • R(g);
    • Try
      • Q(C);
      • Threat
        • S(A)
      • Vars
        • K(h);S_FLIGHT::P=S
        • R(g);SBLOCK::QAR1(C)
      • Refutation
        • R(e);
    • Try
      • P(D);CHECK
      • Vars
        • K(h);S_FLIGHT::P=S
      • Refutation
        • K(h);S_FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAB(C),XP(b)
    • Vars
      • K(h);S_FLIGHT::P=S
      • R(g);SBLOCK::R(E)+P(D)
      • S(f);SBLOCK::S(A)
      • S(f);SBLOCK::S(H)
      • P(b);::QAB(C)
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Developed and maintained by Brian Stephenson.
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