MESON Chess Problem Database

Problem Display
PID: 236530 (1b6/p4r2/K2Pp3/2B1k2P/1R1p3Q/P1pr2P1/3N4/1n6 w - - 0 1)

Dikusarov, Andrey Nikolayovich

Rochade Europa, 2012

1b6/p4r2/K2Pp3/2B1k2P/1R1p3Q/P1pr2P1/3N4/1n6

#2

9 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Qf4#
    • 1...Rf6
      • 2.Qe4#
    • 1...Rb7
      • 2.Qg5#
    • 1...Rc7
      • 2.Qg5#
    • 1...Rd7
      • 2.Qg5#
    • 1...Re7
      • 2.Qg5#
    • 1...Rh7
      • 2.Qg5#
  • Tries
    • 1.Sc4+?
      • 1...Kf5
        • 2.Qf4#
      • 1...Kd5!
    • 1.Qxd4+?
      • 1...Kf5
        • 2.Qf4#
      • 1...Rxd4!
  • Keys
    • 1.Rb5!
      • threat
        • 2.Bb4#
      • 1...Kd5
        • 2.Qe4#
      • 1...Kf5
        • 2.Qf4#
      • 1...Bxd6
        • 2.Bxd4#
      • 1...Sxa3
        • 2.Bxa3#
      • 1...Rb7
        • 2.Qg5#
      • 1...Rc7
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • K(e);P-FLIGHT::QAR1(E)
    • R(h);SBLOCK::QAR1(E)
    • R(h);N_GUARD::QAR2(E)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(e);P-FLIGHT::QAR1(E)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • Q(E);CHECK,XP(d)
      • Vars
        • K(e);P-FLIGHT::QAR1(E)
      • Refutation
        • R(c);XQ(E)
  • Actual
    • R(D);
    • Threat
      • R(D)+B(F)
    • Vars
      • K(e);P-FLIGHT::QAB1(E)
      • K(e);P-FLIGHT::QAR1(E)
      • B(i);SBLOCK,XP(I)::R(D)+B(F),DCHECK,XP(d)
      • S(a);OGATE,XP(B)::R(D)+B(F),XS(a)
      • R(h);N_GUARD::QAR2(E)
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