MESON Chess Problem Database

Problem Display
PID: 232486 (5N2/rR3p2/5P2/2Ppk1K1/3pP3/8/2Q3b1/8 w - - 0 1)

Dikusarov, Andrey Nikolayovich

Freie Presse, 2011

5N2/rR3p2/5P2/2Ppk1K1/3pP3/8/2Q3b1/8

#2

7 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Re7#
    • 1...Ra2
      • 2.Re7#
    • 1...Ra3
      • 2.Re7#
    • 1...Ra4
      • 2.Re7#
    • 1...Ra5
      • 2.Re7#
    • 1...Ra8
      • 2.Re7#
    • 1...Bxe4
      • 2.Qh2#
  • Tries
    • 1.Qb3?
      • threat
        • 2.Qxd5#
      • 1...Bxe4
        • 2.Qg3#
      • 1...dxe4
        • 2.Sd7#
      • 1...Kxe4!
  • Keys
    • 1.Qa2!
      • threat
        • 2.Qxd5#
      • 1...Kxe4
        • 2.Qe2#
      • 1...Rxa2
        • 2.Re7#
      • 1...Bxe4
        • 2.Qh2#
      • 1...dxe4
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • R(e);N_GUARD::R(F)
    • B(a);OGATE,SBLOCK,XP(B)::QAB(A)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR1(A),XP(c)
      • Vars
        • B(a);SBLOCK,XP(B)::QAB(A)
        • P(c);SBLOCK,XP(B)::S(G)
      • Refutation
        • K(d);P-FLIGHT,XP(B)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A),XP(c)
    • Vars
      • K(d);OGATEB,P-FLIGHT,XP(B)::QAR2(A)
      • R(e);N_GUARD,XQ(A)::R(F)
      • B(a);OGATE,SBLOCK,XP(B)::QAB(A)
      • P(c);SBLOCK,XP(B)::S(G)
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