MESON Chess Problem Database

Problem Display
PID: 225682 (3rR3/2Q1N1B1/5Rp1/2ppN3/1P1k3r/5p2/2KnP3/5B2 w - - 0 1)

Piatesi, Antonio

2nd Comm., Praca, 1959

3rR3/2Q1N1B1/5Rp1/2ppN3/1P1k3r/5p2/2KnP3/5B2

#2

10 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sg4?
      • threat
        • 2.Rf4#
      • 1...Kc4
        • 2.Qxc5#
      • 1...Ke4
        • 2.Rf4#
        • 2.Re6#
        • 2.Qf4#
        • 2.Qe5#
      • 1...Se4
        • 2.e3#
      • 1...Rxg4!
    • 1.S7c6+?
      • 1...Ke3
        • 2.Sg4#
      • 1...Ke4!
    • 1.Qxc5+?
      • 1...Kxe5
        • 2.Sc6#
        • 2.Sxg6#
      • 1...Ke4!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Rf4#
      • 1...Kxc4
        • 2.Qxc5#
      • 1...Ke4
        • 2.Re6#
        • 2.Qe5#
      • 1...Sxc4
        • 2.Sc6#
      • 1...dxc4
        • 2.Re6#
      • 1...Re4
        • 2.Qxc5#
      • 1...Rf4
        • 2.Rxf4#
      • 1...Se4
        • 2.e3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Threat
        • B(I)+R(F),DCHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINP(e)::QAR1(G),XP(e)
        • S(a);SBLOCK::P(C)
      • Refutation
        • R(d);XS(E)
    • Try
      • S(H);CHECK
      • Vars
        • K(c);S_FLIGHT::R(J)+S(E),DCHECK
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(G);CHECK,XP(e)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • S(E);
    • Threat
      • B(I)+R(F),DCHECK
    • Vars
      • K(c);P-FLIGHT,P_SPINP(e),XS(E)::QAR1(G),XP(e)
      • S(a);SBLOCK,XS(E)::S(H)
      • P(f);SBLOCK,XS(E)::B(I)+R(F)
      • R(d);SBLOCK::QAB1(G),XP(e)
      • R(d);::B(I)+R(F),DCHECK,XR(d)
      • S(a);SBLOCK::P(C)
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Developed and maintained by Brian Stephenson.
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