MESON Chess Problem Database

Problem Display
PID: 47972 (Rn6/1Nk5/2P5/P6K/P3P1B1/5R1Q/8/8 w - - 0 1)

Subotic, Miroslav

Probleemblad, 2003

Rn6/1Nk5/2P5/P6K/P3P1B1/5R1Q/8/8

#2

10 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Sa6
      • 2.Rc8#
  • Tries
    • 1.Bd7?
      • threat
        • 2.Qh2#
        • 2.Qg3#
      • 1...Sxd7
        • 2.Qxd7#
      • 1...Sxc6!
    • 1.Rb3?
      • 1...Kxc6
        • 2.Qc3#
      • 1...Sxc6
        • 2.Rc8#
      • 1...Sa6
        • 2.Rc8#
      • 1...Sd7!
    • 1.Rf7+?
      • 1...Kxc6
        • 2.Qc3#
      • 1...Sd7!
    • 1.Rxb8?
      • threat
        • 2.Rc8#
      • 1...Kxc6
        • 2.Rc3#
      • 1...Kxb8!
  • Keys
    • 1.Bc8!
      • 1...Kxc6
        • 2.Rc3#
      • 1...Sxc6
        • 2.Qd7#
      • 1...Sa6
        • 2.Qd7#
      • 1...Sd7
        • 2.Qxd7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(b);OGATE::R1(J)
  • Tries
    • Try
      • B(E);
      • Threat
        • DUALS(2)
      • Vars
        • S(b);OGATE,XB(E)::QAR1(B),XS(b)
      • Refutation
        • S(b);XP(H)
    • Try
      • R(A);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(H)::QAR(B)
        • S(b);OGATE,SBLOCK,XP(H)::R1(J)
        • S(b);OGATE::R1(J)
      • Refutation
        • S(b);
    • Try
      • R(A);CHECK
      • Vars
        • K(a);P-FLIGHT,XP(H)::QAR(B)
      • Refutation
        • S(b);P_SPINS(b)
    • Try
      • R(J);XS(b)
      • Threat
        • R1(J)
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(H)::R(A)
      • Refutation
        • K(a);S_FLIGHT,XR(J)
  • Actual
    • B(E);
    • Vars
      • K(a);OGATEB,P-FLIGHT,XP(H)::R(A)
      • S(b);N_GUARD,XP(H)::QAR1(B)
      • S(b);N_GUARD::QAR1(B)
      • S(b);N_GUARD::QAR1(B),XS(b)
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