MESON Chess Problem Database

Problem Display
PID: 245481 (8/B3K3/8/3k4/2N2p1Q/8/2P5/8 w - - 0 1)

Shumarin, Vladimir Pavlovich

Kudesnik, 2001

8/B3K3/8/3k4/2N2p1Q/8/2P5/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sd2?
      • 1...Ke5
        • 2.Qg5#
        • 2.Qh5#
      • 1...f3
        • 2.Qe4#
      • 1...Kc6!
    • 1.Sd6?
      • 1...Ke5
        • 2.Qg5#
        • 2.Qh5#
      • 1...f3
        • 2.Qe4#
      • 1...Kc6!
    • 1.Qg5+?
      • 1...Kxc4
        • 2.Qc5#
      • 1...Ke4
        • 2.Sd2#
      • 1...Kc6!
    • 1.Qh5+?
      • 1...Kxc4
        • 2.Qc5#
      • 1...Ke4
        • 2.Sd2#
        • 2.Sd6#
      • 1...Kc6!
  • Keys
    • 1.Qh3!
      • threat
        • 2.Qe6#
      • 1...Kxc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qd3#
      • 1...Kc6
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Vars
        • P(a);OGATE::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(B);
      • Vars
        • P(a);OGATE::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT,XS(B)::QAR1(C)
        • K(b);S_FLIGHT::S(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT,XS(B)::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(B)::QAB1(C)
      • K(b);S_FLIGHT::QAB1(C)
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