MESON Chess Problem Database

Problem Display
PID: 136749 (b3R2K/1n3p2/N7/p2k4/3N2B1/1PP1pP2/1p5B/2b2r2 w - - 0 1)

Paslack, Rainer

Die Schwalbe, 2010

b3R2K/1n3p2/N7/p2k4/3N2B1/1PP1pP2/1p5B/2b2r2

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf3
      • 2.Bxf3#
    • 1...Sc5
      • 2.Sc7#
    • 1...Sd6
      • 2.Re5#
    • 1...Sd8
      • 2.Rxd8#
    • 1...f6
      • 2.Be6#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Se7#
      • 1...Rxf3
        • 2.Bxf3#
      • 1...Kc6!
    • 1.Bd7?
      • threat
        • 2.Bc6#
      • 1...Sc5
        • 2.Sc7#
      • 1...Sd6
        • 2.Re5#
      • 1...Sd8!
    • 1.Re4?
      • threat
        • 2.c4#
      • 1...Sd6
        • 2.Re5#
      • 1...Rxf3!
    • 1.Rd8+?
      • 1...Sd6
        • 2.Rxd6#
      • 1...Sxd8!
  • Keys
    • 1.Bh5!
      • threat
        • 2.Bxf7#
      • 1...Rxf3
        • 2.Bxf3#
      • 1...Sc5
        • 2.Sc7#
      • 1...Sd6
        • 2.Re5#
      • 1...Sd8
        • 2.Rxd8#
      • 1...f5
        • 2.Bf7#
      • 1...f6
        • 2.Bf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(b);OGATE,XP(D)::B(F),XR(b)
    • S(g);SBLOCK::S(G)
    • S(g);SBLOCK::R1(H)
    • S(g);N_GUARD::R(H),XS(g)
    • P(h);N_GUARD::B(F)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • R(b);OGATE,XP(D)::B(F),XR(b)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • B(F);
      • Threat
        • B(F)
      • Vars
        • S(g);SBLOCK::S(G)
        • S(g);SBLOCK::R1(H)
      • Refutation
        • S(g);
    • Try
      • R(H);
      • Threat
        • P(C)
      • Vars
        • S(g);SBLOCK::R1(H)
      • Refutation
        • R(b);XP(D)
    • Try
      • R(H);CHECK
      • Vars
        • S(g);N_GUARD,P_SPINS(g)::R1(H),XS(g)
      • Refutation
        • S(g);XR(H)
  • Actual
    • B(F);
    • Threat
      • B(F),XP(h)
    • Vars
      • R(b);OGATE,XP(D)::B(F),XR(b)
      • S(g);SBLOCK::S(G)
      • S(g);SBLOCK::R1(H)
      • S(g);N_GUARD::R(H),XS(g)
      • P(h);::B(F)
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