MESON Chess Problem Database

Problem Display
PID: 224159 (8/3QNp2/5p1B/1r4p1/RP2k3/7P/4K3/8 w - - 0 1)

Dikusarov, Andrey Nikolayovich

Sachova skladba, 2003

8/3QNp2/5p1B/1r4p1/RP2k3/7P/4K3/8

#2

7 + 5

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Qg4#
      • 2.b5#
  • Tries
    • 1.Sg6?
      • threat
        • 2.Qd3#
      • 1...Rd5
        • 2.Qg4#
      • 1...fxg6!
    • 1.Qd3+?
      • 1...Kf4
        • 2.Qe3#
      • 1...Ke5!
  • Keys
    • 1.Sc6!
      • 1...Kf4
        • 2.Qg4#
      • 1...Rxb4
        • 2.Rxb4#
      • 1...Ra5
        • 2.bxa5#
      • 1...Rc5
        • 2.bxc5#
      • 1...Rd5
        • 2.Qg4#
      • 1...Re5
        • 2.b5#
      • 1...Rf5
        • 2.Qd4#
        • 2.b5#
      • 1...Rb6
        • 2.b5#
      • 1...Rb7
        • 2.b5#
      • 1...Rb8
        • 2.b5#
      • 1...g4
        • 2.Qd3#
      • 1...f5
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);
      • Threat
        • QAB1(F)
      • Vars
        • R(b);SBLOCK::QAR2(F)
      • Refutation
        • P(e);XS(G)
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);P-FLIGHT,P_SPINP(c)::QAB1(F)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(G);
    • Vars
      • K(a);P-FLIGHT,P_SPINP(c)::QAR1(F)
      • R(b);OGATE,P_SPINR(b),XP(D)::R(C),XR(b)
      • R(b);OGATE::R(C)+P(D),XR(b)
      • R(b);SBLOCK::QAR2(F)
      • R(b);OGATE::R(C)+P(D)
      • P(c);::QAB1(F)
      • P(d);SBLOCK::QAR1(F)
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