MESON Chess Problem Database

Problem Display
PID: 260968 (2R3Bb/2NKR3/6p1/rp3pr1/1P1k1N2/3p1P2/1n1P3B/2n5 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Neue Zurcher Zeitung, 2008

2R3Bb/2NKR3/6p1/rp3pr1/1P1k1N2/3p1P2/1n1P3B/2n5

#2

10 + 10

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Sxb5#
    • 1...Ra2
      • 2.Sxb5#
    • 1...Ra3
      • 2.Sxb5#
    • 1...Ra4
      • 2.Sxb5#
    • 1...Ra6
      • 2.Sxb5#
    • 1...Ra8
      • 2.Sxb5#
    • 1...Rg1
      • 2.Bxg1#
    • 1...Rh5
      • 2.Bg1#
    • 1...Be5
      • 2.Sce6#
    • 1...Sc4
      • 2.Sfe6#
  • Tries
    • 1.Bd5?
      • threat
        • 2.Sfe6#
      • 1...Ra6
        • 2.Sxb5#
      • 1...Rg3!
    • 1.Re3?
      • threat
        • 2.Sce6#
      • 1...Ra6
        • 2.Sxb5#
      • 1...Ra7!
    • 1.Rd8?
      • threat
        • 2.Kc6#
        • 2.Kc8#
        • 2.Ke8#
      • 1...Ra6
        • 2.Sxb5#
      • 1...Ra8
        • 2.Sxb5#
      • 1...Sc4
        • 2.Sfe6#
      • 1...Be5!
    • 1.bxa5?
      • threat
        • 2.Sxb5#
      • 1...b4
        • 2.Sb5#
      • 1...Kc5!
  • Keys
    • 1.Ke8!
      • threat
        • 2.Rd8#
      • 1...Ra6
        • 2.Sxb5#
      • 1...Ra8
        • 2.Sxb5#
      • 1...Be5
        • 2.Sce6#
      • 1...Sc4
        • 2.Sfe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • R(e);N_GUARD::S(F),XP(f)
    • R(h);N_GUARD::B(B),XR(h)
    • R(h);N_GUARD::B(B)
    • B(j);SBLOCK::S(F)
    • S(b);SBLOCK::S(E)
  • Tries
    • Try
      • B(J);
      • Threat
        • S(E)
      • Vars
        • R(e);N_GUARD::S(F),XP(f)
      • Refutation
        • R(h);
    • Try
      • R(H);
      • Threat
        • S(F)
      • Vars
        • R(e);N_GUARD::S(F),XP(f)
      • Refutation
        • R(e);P_PINS(F)
    • Try
      • R(I);
      • Threat
        • DUALS(3)
      • Vars
        • R(e);N_GUARD::S(F),XP(f)
        • S(b);SBLOCK::S(E)
      • Refutation
        • B(j);
    • Try
      • P(D);XR(e)
      • Threat
        • S(F),XP(f)
      • Vars
        • P(f);::S(F)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • K(G);S_FLIGHT
    • Threat
      • R(I)
    • Vars
      • R(e);N_GUARD::S(F),XP(f)
      • R(e);N_GUARD,P_PINR(I)::S(F),XP(f)
      • B(j);SBLOCK::S(F)
      • S(b);SBLOCK::S(E)
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