MESON Chess Problem Database

Problem Display
PID: 277088 (BB6/5n1r/3p1p2/1KNR1p1r/2pPPk1P/5p1P/b4P2/8 w - - 0 1)

Mihalco, Oto

Pat a Mat, 2009

BB6/5n1r/3p1p2/1KNR1p1r/2pPPk1P/5p1P/b4P2/8

#2

10 + 10

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Rxh4
      • 2.Rxf5#
    • 1...R5h6
      • 2.Rxf5#
    • 1...Sg5
      • 2.Bxd6#
      • 2.Rxf5#
    • 1...Sh6
      • 2.Bxd6#
    • 1...Sd8
      • 2.Bxd6#
    • 1...Sh8
      • 2.Bxd6#
    • 1...fxe4
      • 2.Se6#
  • Tries
    • 1.Re5?
      • threat
        • 2.Se6#
      • 1...dxc5
        • 2.Rxf5#
      • 1...Sg5
        • 2.Rxf5#
      • 1...c3
        • 2.Sd3#
      • 1...Sd8!
  • Keys
    • 1.Rxd6!
      • threat
        • 2.Se6#
      • 1...Sxd6+
        • 2.Bxd6#
      • 1...fxe4
        • 2.Rxf6#
      • 1...Sg5
        • 2.Rd7#
      • 1...Sd8
        • 2.Rd7#
      • 1...c3
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • R(f);N_GUARD,XP(E)::R1(H),XP(e)
    • R(f);N_GUARD::R1(H),XP(e)
    • S(i);N_GUARD::B(J),XP(g)
    • P(e);SBLOCK,XP(D)::S(G)
  • Tries
    • Try
      • R(H);N_PINP(g)
      • Threat
        • S(G)
      • Vars
        • P(g);XS(G)::B(J)+R(H),DCHECK,XP(e)
        • S(i);S_CUTR(f)::R1(H),XP(e)
        • P(c);N_GUARD::S(G)
      • Refutation
        • S(i);
  • Actual
    • R(H);XP(g)
    • Threat
      • S(G)
    • Vars
      • S(i);CHECK,OGATE,P_SPINS(i),XR(H)::B(J),XS(i)
      • P(e);P_PINS(G),XP(D)::B(J)+R(H),DCHECK,XP(h)
      • S(i);N_GUARD::B(J)+R(H)
      • P(c);N_GUARD::S(G)
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