MESON Chess Problem Database

Problem Display
PID: 248944 (1Bb3nK/7R/4k1P1/5p1N/BpPn1P2/1rN5/3R4/Q4r2 w - - 0 1)

Blikeng, Bjarne

Nieuw Nederland, 1947

1Bb3nK/7R/4k1P1/5p1N/BpPn1P2/1rN5/3R4/Q4r2

#2

11 + 8

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ba6
      • 2.Bd7#
    • 1...Bb7
      • 2.Bd7#
    • 1...Bd7
      • 2.Bxd7#
    • 1...Sc2
      • 2.Rd6#
    • 1...Se2
      • 2.Rxe2#
      • 2.Rd6#
    • 1...Sf3
      • 2.Rd6#
    • 1...Sb5
      • 2.Re2#
    • 1...Sc6
      • 2.Rd6#
  • Tries
    • 1.Se2?
      • threat
        • 2.Sxd4#
      • 1...Rxf4
        • 2.Sexf4#
      • 1...Sxe2
        • 2.Rd6#
        • 2.Qe5#
      • 1...Sc2
        • 2.Rd6#
        • 2.Qe5#
      • 1...Sf3
        • 2.Rd6#
      • 1...Sb5
        • 2.Qe5#
      • 1...Sc6
        • 2.Rd6#
      • 1...Rd3!
    • 1.Se4?
      • threat
        • 2.Sc5#
        • 2.Sg5#
      • 1...Rg1
        • 2.Sc5#
      • 1...Rg3
        • 2.Sc5#
      • 1...Sf3
        • 2.Sc5#
        • 2.Rd6#
      • 1...fxe4!
    • 1.Qe1+?
      • 1...Se2
        • 2.Rxe2#
        • 2.Rd6#
        • 2.Qxe2#
      • 1...Rxe1!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Sg7#
      • 1...Sb5
        • 2.Qe5#
      • 1...Sc6
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • B(g);N_GUARD::B(D)
    • B(g);N_GUARD::B(D),XB(g)
    • S(d);OGATE::R1(B)
    • S(d);N_GUARD::R(B)
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C),XS(d)
      • Vars
        • R(a);XP(F)::S(C),XR(a)
        • S(d);OGATE::R1(B)
        • S(d);OGATE::QAR1(A)
      • Refutation
        • R(b);
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);::S(C)
        • R(b);::S(C)
      • Refutation
        • P(e);XS(C)
    • Try
      • Q(A);CHECK
      • Refutation
        • R(a);XQ(A)
  • Actual
    • S(C);
    • Threat
      • S(G)
    • Vars
      • S(d);OGATE::QAR1(A)
      • S(d);::S(C)
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