MESON Chess Problem Database

Problem Display
PID: 263427 (1B3R2/4k1pN/bN6/2RB4/1p6/6p1/Q5nq/K4n2 w - - 0 1)

Burda, Josef

64 Shakhmatnoe obozrenie, 2022

1B3R2/4k1pN/bN6/2RB4/1p6/6p1/Q5nq/K4n2

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Be2
      • 2.Qa7#
    • 1...Bd3
      • 2.Qa7#
    • 1...Bc4
      • 2.Qa7#
  • Tries
    • 1.Sc8+?
      • 1...Kd7
        • 2.Bc6#
        • 2.Be6#
        • 2.Rc7#
      • 1...Bxc8!
    • 1.Bf7?
      • threat
        • 2.Re5#
        • 2.Re8#
        • 2.Qe6#
      • 1...Qh5
        • 2.Re8#
        • 2.Qe6#
      • 1...Qh3
        • 2.Re8#
      • 1...Qh6
        • 2.Re8#
      • 1...Bc4
        • 2.Qa7#
      • 1...Bb5
        • 2.Re5#
        • 2.Qe6#
      • 1...Bc8
        • 2.Re8#
      • 1...Sf4
        • 2.Re8#
      • 1...b3
        • 2.Re5#
      • 1...Qxh7!
    • 1.Rc6?
      • threat
        • 2.Bd6#
        • 2.Re6#
      • 1...Qxh7
        • 2.Bd6#
      • 1...Qh3
        • 2.Bd6#
      • 1...Bc8
        • 2.Bd6#
      • 1...Sf4
        • 2.Bd6#
      • 1...Qh6!
    • 1.Qa4?
      • threat
        • 2.Re8#
        • 2.Qd7#
        • 2.Qe8#
      • 1...Qxh7
        • 2.Qe8#
      • 1...Qh5
        • 2.Qd7#
      • 1...Qh3
        • 2.Re8#
        • 2.Qe8#
      • 1...Bc8
        • 2.Sxc8#
        • 2.Re8#
        • 2.Qe8#
      • 1...Bb5!
  • Keys
    • 1.Bg8!
      • threat
        • 2.Re5#
        • 2.Qe6#
        • 2.Qf7#
      • 1...Qxh7
        • 2.Qf7#
      • 1...Qh5
        • 2.Qe6#
      • 1...Qh3
        • 2.Qf7#
      • 1...Qh6
        • 2.Qf7#
      • 1...Bc4
        • 2.Qa7#
      • 1...Bc8
        • 2.Qf7#
      • 1...Sf4
        • 2.Qf7#
      • 1...b3
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 2
  • Sets
    • B(f);OGATE::QAR(B)
  • Tries
    • Try
      • S(E);CHECK
      • Refutation
        • B(f);XS(E)
    • Try
      • B(D);
      • Threat
        • DUALS(3)
      • Vars
        • Q(c);::R1(H)
        • B(f);OGATE::QAR(B)
        • B(f);::R1(H)
        • S(b);::R1(H)
        • P(e);::R(C)
      • Refutation
        • Q(c);XS(F)
    • Try
      • R(C);
      • Threat
        • DUALS(2)
      • Vars
        • Q(c);XS(F)::B(G)
        • Q(c);::B(G)
        • B(f);::B(G)
        • S(b);::B(G)
      • Refutation
        • Q(c);
    • Try
      • Q(B);
      • Threat
        • DUALS(3)
      • Vars
        • Q(c);XS(F)::QAR1(B)
        • Q(c);::QAR1(B)
      • Refutation
        • B(f);
  • Actual
    • B(D);
    • Threat
      • DUALS(3)
    • Vars
      • Q(c);XS(F)::QAR1(B)
      • Q(c);::QAR1(B)
      • B(f);OGATE::QAR(B)
      • B(f);::QAR1(B)
      • S(b);::QAR1(B)
      • P(e);::R(C)
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