MESON Chess Problem Database

Problem Display
PID: 169349 (7Q/1B1NP3/5P2/1K2P3/p2kNp2/b1pp1R2/2b5/3n4 w - - 0 1)

Novitski, Petr Adrinovich

3rd Prize, SuperProblem 172. TT, 2016

7Q/1B1NP3/5P2/1K2P3/p2kNp2/b1pp1R2/2b5/3n4

#2

9 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sec5?
      • threat
        • 2.Se6#
      • 1...Bb3
        • 2.Rxd3#
      • 1...Bxc5!
    • 1.Qc8?
      • threat
        • 2.Qc4#
      • 1...Bc5
        • 2.Qxc5#
      • 1...Sb2
        • 2.Qxc3#
      • 1...Se3
        • 2.Qxc3#
      • 1...Bb3!
    • 1.e6?
      • threat
        • 2.f7#
      • 1...Bxe7
        • 2.fxe7#
      • 1...Bd6!
    • 1.f7?
      • threat
        • 2.e6#
      • 1...Bd6
        • 2.exd6#
      • 1...Bxe7!
  • Keys
    • 1.Sg3!
      • threat
        • 2.Sf5#
      • 1...fxg3
        • 2.Qh4#
      • 1...Se3
        • 2.Rxf4#
      • 1...d2
        • 2.Se2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • S(B)
      • Vars
        • B(b);N_GUARD::R1(A),XP(e)
      • Refutation
        • B(c);XS(B)
    • Try
      • Q(I);
      • Threat
        • QAR1(I)
      • Vars
        • B(c);N_GUARD::QAB1(I),XB(c)
        • S(a);N_GUARD::QAB1(I),XP(d)
      • Refutation
        • B(b);
    • Try
      • P(D);
      • Threat
        • QAB(I)+P(E)
      • Vars
        • B(c);OGATE,XP(H)::QAB(I)+P(E),XB(c)
      • Refutation
        • B(c);
    • Try
      • P(E);
      • Threat
        • QAB(I)+P(D)
      • Vars
        • B(c);OGATE::QAB(I)+P(D),XB(c)
      • Refutation
        • B(c);XP(H)
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • P(h);OGATEB,XS(B)::QAR(I)
      • S(a);SBLOCK::R(A),XP(h)
      • P(e);N_GUARD::S(B)
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