MESON Chess Problem Database

Problem Display
PID: 90043 (8/6p1/1NpQ2K1/2p3pB/Rn1nk3/2r3R1/4r3/b2N4 w - - 0 1)

Reddmann, Hauke

Die Schwalbe, 1997

8/6p1/1NpQ2K1/2p3pB/Rn1nk3/2r3R1/4r3/b2N4

#2

7 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.Sf2#
    • 1...Rb2
      • 2.Sxc3#
    • 1...Rf2
      • 2.Sxf2#
    • 1...Ree3
      • 2.Sf2#
    • 1...Sd3
      • 2.Bf3#
    • 1...Sf3
      • 2.Rg4#
  • Tries
    • 1.Re3+?
      • 1...Rexe3
        • 2.Sf2#
      • 1...Rcxe3!
    • 1.Rg4+?
      • 1...Kf3
        • 2.Qg3#
      • 1...Kd3!
  • Keys
    • 1.Sd7!
      • threat
        • 2.Qe5#
      • 1...Rxg3
        • 2.Sxc5#
      • 1...Ree3
        • 2.Sf2#
      • 1...Rce3
        • 2.Sxc5#
      • 1...Rf3
        • 2.Sxc5#
      • 1...Sd3
        • 2.Bf3#
      • 1...Sf3
        • 2.Rg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(b);N_GUARD::S(A)
    • R(b);S_CUTB(a)::S(A),XR(c)
    • R(b);N_GUARD::S(A),XR(b)
    • S(d);P_SPINS(e),SBLOCK,S_CUTR(c)::B(D)
    • S(e);P_SPINS(d),SBLOCK::R(B)
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • R(b);SBLOCK,XR(B)::S(A)
      • Refutation
        • R(c);XR(B)
    • Try
      • R(B);CHECK
      • Vars
        • K(f);S_FLIGHT::QAR1(F)
      • Refutation
        • K(f);P_SPINS(e),S_FLIGHT
  • Actual
    • S(E);
    • Threat
      • QAR1(F)
    • Vars
      • R(c);N_GUARD,XR(B)::S(E),XP(g)
      • R(b);N_GUARD::S(A)
      • R(c);N_GUARD::S(E),XP(g)
      • S(d);P_SPINS(e),SBLOCK,S_CUTR(c)::B(D)
      • S(e);P_SPINS(d),SBLOCK::R(B)
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