MESON Chess Problem Database

Problem Display
PID: 160028 (6n1/8/6Q1/7n/8/5k2/6R1/4K2R w K - 0 1)

Antipov, Viacheslav Pavlovich

Znamya dsershinska, 1986

6n1/8/6Q1/7n/8/5k2/6R1/4K2R

#2

4 + 3

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Sf4
      • 2.Rg3#
  • Tries
    • 1.Rh4?
      • threat
        • 2.Qe4#
      • 1...Ke3
        • 2.Qe4#
      • 1...Sg3
        • 2.Rxg3#
        • 2.Qxg3#
      • 1...Sf4
        • 2.Rg3#
      • 1...Shf6
        • 2.Rg3#
        • 2.Qg3#
      • 1...Sgf6!
    • 1.Re2?
      • threat
        • 2.Rf1#
      • 1...Kf4
        • 2.Rf1#
        • 2.0-0#
      • 1...Sg3!
    • 1.Qd3+?
      • 1...Kxg2
        • 2.Qh3#
      • 1...Kf4!
  • Keys
    • 1.Qe6!
      • threat
        • 2.0-0#
      • 1...Kxg2
        • 2.Qh3#
      • 1...Kf4
        • 2.Rf1#
        • 2.0-0#
      • 1...Sg3
        • 2.Rf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(b);N_GUARD,SBLOCK::R1(C)
  • Tries
    • Try
      • R(B);
      • Threat
        • QAB1(D)
      • Vars
        • K(a);P-FLIGHT::QAR1(D)
        • S(b);N_GUARD::R1(C)
      • Refutation
        • S(c);
    • Try
      • R(C);
      • Threat
        • R(B)
      • Refutation
        • S(b);
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XR(C)::QAB1(D)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(D);
    • Threat
      • 0-0
    • Vars
      • K(a);S_FLIGHT,XR(C)::QAB1(D)
      • S(b);SBLOCK::R1(C)
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