MESON Chess Problem Database

Problem Display
PID: 233033 (8/2Q2r2/2N1r3/2pp4/2k1P3/2P2p2/2K3p1/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Kudesnik, 2016

8/2Q2r2/2N1r3/2pp4/2k1P3/2P2p2/2K3p1/8

#2

5 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qb8?
      • threat
        • 2.Sa5#
        • 2.Qb3#
      • 1...Rxc6
        • 2.Qb3#
      • 1...dxe4
        • 2.Qb3#
      • 1...Ra7
        • 2.Qb3#
      • 1...Rb7!
    • 1.Qb7?
      • threat
        • 2.Sa5#
        • 2.Qa6#
        • 2.Qb3#
      • 1...Rxc6
        • 2.Qb3#
      • 1...dxe4
        • 2.Sa5#
        • 2.Qb3#
      • 1...Rxb7!
  • Keys
    • 1.Qb6!
      • threat
        • 2.Sa5#
        • 2.Qb3#
        • 2.Qa6#
      • 1...Rxc6
        • 2.Qb3#
      • 1...dxe4
        • 2.Qb3#
      • 1...Ra7
        • 2.Qb3#
      • 1...Rb7
        • 2.Sa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);
      • Threat
        • DUALS(2)
      • Vars
        • R(f);XS(D)::QAB1(E)
        • P(e);XP(C)::QAB1(E)
        • R(g);::QAB1(E)
      • Refutation
        • R(g);
    • Try
      • Q(E);
      • Threat
        • DUALS(3)
      • Vars
        • R(f);XS(D)::QAB1(E)
      • Refutation
        • R(g);XQ(E)
  • Actual
    • Q(E);
    • Threat
      • DUALS(3)
    • Vars
      • R(f);XS(D)::QAB1(E)
      • P(e);XP(C)::QAB1(E)
      • R(g);::QAB1(E)
      • R(g);::S(D)
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