MESON Chess Problem Database

Problem Display
PID: 262723 (6B1/1pK2RP1/2ppPQ2/1r1k4/1P6/N3r3/5N2/3q3b w - - 0 1)

Dyachuk, Vasyl Vasilovich

3rd Prize, SuperProblem, 2018

6B1/1pK2RP1/2ppPQ2/1r1k4/1P6/N3r3/5N2/3q3b

#2

9 + 8

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Rd7?
      • threat
        • 2.Rxd6#
      • 1...Rxa3
        • 2.e7#
      • 1...Rxb4!
    • 1.e7?
      • threat
        • 2.Qxd6#
      • 1...Rxe7+
        • 2.Rxe7#
      • 1...Rxa3
        • 2.Rf8#
      • 1...Re6!
  • Keys
    • 1.Qf4!
      • threat
        • 2.Qxd6#
      • 1...Kxe6
        • 2.Rd7#
      • 1...Rxa3
        • 2.Rf5#
      • 1...Rxe6
        • 2.Rf5#
      • 1...Re5
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(G);P_PINP(g)
      • Threat
        • R1(G),XP(g)
      • Vars
        • R(c);N_GUARD,XS(B)::B(I)+P(D)
      • Refutation
        • R(d);XP(C)
    • Try
      • P(D);
      • Threat
        • QAR1(E),XP(g)
      • Vars
        • R(c);CHECK,OGATE,XP(D)::B(I)+R(G),XR(c)
        • R(c);N_GUARD,XS(B)::B(I)+R(G)
      • Refutation
        • R(c);
  • Actual
    • Q(E);
    • Threat
      • QAR1(E),XP(g)
    • Vars
      • K(e);OGATEB,S_FLIGHT,XP(D)::B(I)+R(G)
      • R(c);N_GUARD,XS(B)::R(G)
      • R(c);N_GUARD,XP(D)::R(G)
      • R(c);SBLOCK::QAB1(E)
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