MESON Chess Problem Database

Problem Display
PID: 169369 (8/7Q/r1pppr2/3k4/1R2N1N1/1n1P1nK1/2P5/8 w - - 0 1)

Novitski, Petr Adrinovich

Comm., SuperProblem 122. TT, 2014

8/7Q/r1pppr2/3k4/1R2N1N1/1n1P1nK1/2P5/8

#2

7 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sbd4
      • 2.c4#
    • 1...Sc5
      • 2.Sc3#
      • 2.Sexf6#
    • 1...Sfd4
      • 2.c4#
    • 1...Se5
      • 2.Se3#
      • 2.Sgxf6#
  • Tries
    • 1.Rd4+?
      • 1...Sbxd4
        • 2.c4#
      • 1...Sfxd4
        • 2.c4#
      • 1...Kxd4!
    • 1.Qc7?
      • threat
        • 2.Qxd6#
      • 1...c5
        • 2.Sc3#
        • 2.Sexf6#
      • 1...e5!
    • 1.Qe7?
      • threat
        • 2.Qxd6#
      • 1...e5
        • 2.Se3#
        • 2.Sgxf6#
      • 1...c5!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Qxd6#
      • 1...c5
        • 2.Sc3#
        • 2.Sexf6#
      • 1...e5
        • 2.Se3#
        • 2.Sgxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • S(a);SBLOCK::P(A)
    • S(b);SBLOCK::P(A)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • S(a);SBLOCK,XR(D)::P(A)
        • S(b);SBLOCK,XR(D)::P(A)
      • Refutation
        • K(c);P-FLIGHT,XR(D)
    • Try
      • Q(G);
      • Threat
        • QAR1(G),XP(f)
      • Refutation
        • P(g);
    • Try
      • Q(G);
      • Threat
        • QAR1(G),XP(f)
      • Refutation
        • P(e);
  • Actual
    • Q(G);P_PINP(f)
    • Threat
      • QAR1(G),XP(f)
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