MESON Chess Problem Database

Problem Display
PID: 277873 (1Q6/q3p3/b2r1P2/2Npb3/R2p1kPB/3n4/8/K2BR3 w - - 0 1)

Turoverov, Valentin Alekseevich

diagrammes, 1981

1Q6/q3p3/b2r1P2/2Npb3/R2p1kPB/3n4/8/K2BR3

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rb6
      • 2.Rxd4#
    • 1...Rc6
      • 2.Rxd4#
    • 1...Re6
      • 2.Sxe6#
      • 2.Rxd4#
    • 1...Rxf6
      • 2.Rxd4#
    • 1...Rd7
      • 2.Se6#
      • 2.Rxd4#
    • 1...Rd8
      • 2.Se6#
      • 2.Rxd4#
    • 1...Bxf6
      • 2.Se6#
    • 1...Bb7
      • 2.Sxd3#
    • 1...Bc8
      • 2.Sxd3#
  • Tries
    • 1.Qb2?
      • threat
        • 2.Qd2#
        • 2.Qh2#
      • 1...Sxe1
        • 2.Qc1#
        • 2.Qd2#
      • 1...Sf2
        • 2.Qc1#
        • 2.Qd2#
        • 2.Qxf2#
      • 1...Sxb2!
  • Keys
    • 1.Qf8!
      • threat
        • 2.Qh6#
      • 1...Rxf6
        • 2.Se6#
      • 1...Bxf6
        • 2.Rxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • R(g);P_SPINB(e)::R(D),XP(b)
    • R(g);P_SPINB(e),XP(H)::R(D),XP(b)
    • B(e);P_SPINR(g),XP(H)::S(G)
    • B(f);N_GUARD,P_PINR(D)::S(G),XS(a)
  • Tries
    • Try
      • Q(I);
      • Threat
        • DUALS(2)
      • Refutation
        • S(a);XQ(I)
  • Actual
    • Q(I);
    • Threat
      • QAB(I)
    • Vars
      • R(g);N_GUARD,P_SPINR(g),XP(H)::S(G)
      • B(e);N_GUARD,P_SPINB(e),XP(H)::R(D),XP(b)
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