MESON Chess Problem Database

Problem Display
PID: 255887 (RB5b/2n1r3/3pkP2/K6Q/B3N3/3N4/3Rn3/3r4 w - - 0 1)

Mauritius, Ch

Wiener Schachzeitung, 1936

RB5b/2n1r3/3pkP2/K6Q/B3N3/3N4/3Rn3/3r4

#2

9 + 7

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sc1
      • 2.Sf4#
    • 1...Sg1
      • 2.Sf4#
    • 1...Sc3
      • 2.Sf4#
    • 1...Sg3
      • 2.Sf4#
    • 1...Sd4
      • 2.Sf4#
    • 1...Sf4
      • 2.Sxf4#
    • 1...d5
      • 2.Sdc5#
  • Tries
    • 1.Ra6?
      • threat
        • 2.Sdc5#
        • 2.Rxd6#
      • 1...Sb5
        • 2.Sdc5#
      • 1...Rc1
        • 2.Rxd6#
      • 1...Rd7
        • 2.Sdc5#
      • 1...Se8
        • 2.Sdc5#
      • 1...Sxa6!
  • Keys
    • 1.Sxd6!
      • threat
        • 2.Qe5#
      • 1...Kxd6
        • 2.Ra6#
      • 1...Kxf6
        • 2.Qh6#
      • 1...Bxf6
        • 2.Sc5#
      • 1...Sb5
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • S(b);N_GUARD::S(B)
    • S(b);N_GUARD::S(B),XS(b)
    • P(c);N_GUARD::S(B)
  • Tries
    • Try
      • R(H);P_PINP(c)
      • Threat
        • DUALS(2)
      • Vars
        • S(e);::S(B)
        • R(a);::R1(H),XP(c)
        • R(f);::S(B)
      • Refutation
        • S(e);N_SPINP(c),XR(H)
  • Actual
    • S(D);XP(c)
    • Threat
      • QAR1(F)
    • Vars
      • K(d);OGATEB,P-FLIGHT,P_SPINS(e),XS(D)::R(H)
      • K(d);OGATEB,P-FLIGHT,XP(G)::QAR2(F)
      • B(g);SBLOCK,XP(G)::S(B)
      • S(e);::QAB1(F)
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