MESON Chess Problem Database

Problem Display
PID: 244408 (5n1b/QK6/8/1R1n1P1R/2pPk3/2r5/4NP2/4N3 w - - 0 1)

Dittrich, Stefan

Revista Romana de Sah, 1984

5n1b/QK6/8/1R1n1P1R/2pPk3/2r5/4NP2/4N3

#2

9 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd4
      • 2.Qxd4#
    • 1...Se3
      • 2.f3#
    • 1...Sb4
      • 2.Rh4#
    • 1...Sf4
      • 2.Sxc3#
    • 1...Sb6
      • 2.Rh4#
    • 1...Sf6
      • 2.Re5#
    • 1...Sc7
      • 2.Rh4#
    • 1...Se7
      • 2.Rh4#
  • Tries
    • 1.Sxc3+?
      • 1...Sxc3
        • 2.Rh4#
      • 1...Kf4!
    • 1.Rh4+?
      • 1...Sf4
        • 2.Sxc3#
        • 2.Rxf4#
      • 1...Kxf5!
  • Keys
    • 1.Qc5!
      • threat
        • 2.Qxd5#
      • 1...Se3
        • 2.f3#
      • 1...Sb4
        • 2.Rh4#
      • 1...Sf4
        • 2.Sxc3#
      • 1...Sb6
        • 2.Rh4#
      • 1...Sf6
        • 2.Qe5#
      • 1...Sc7
        • 2.Rh4#
      • 1...Se7
        • 2.Rh4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • B(f);OGATE,XP(D)::QAR1(H),XB(f)
    • S(d);SBLOCK,S_CUTR(a)::P(C)
    • S(d);N_GUARD::R(G)
    • S(d);N_GUARD,SBLOCK::S(B),XR(a)
    • S(d);OGATE::R1(E)
  • Tries
    • Try
      • S(B);CHECK,XR(a)
      • Vars
        • S(d);XS(B)::R(G)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • R(G);CHECK
      • Refutation
        • K(c);P_SPINS(d),S_FLIGHT,XP(F)
  • Actual
    • Q(H);
    • Threat
      • QAB1(H),XS(d)
    • Vars
      • S(d);SBLOCK,S_CUTR(a)::P(C)
      • S(d);N_GUARD::R(G)
      • S(d);N_GUARD,SBLOCK::S(B),XR(a)
      • S(d);OGATE::QAR1(H)
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