MESON Chess Problem Database

Problem Display
PID: 159798 (4q2b/n2pp1n1/1P1k4/N1R2p1p/3B3K/NQ6/8/7b w - - 0 1)

Andrew, Frederick William

Bank Notes, 1905

4q2b/n2pp1n1/1P1k4/N1R2p1p/3B3K/NQ6/8/7b

#2

7 + 10

15351 SCPF/BCPS Black Books 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Qxd5#
    • 1...Bb7
      • 2.Sxb7#
    • 1...Sb5
      • 2.Sxb5#
    • 1...Sc6
      • 2.Sb5#
      • 2.Sb7#
    • 1...Sc8
      • 2.Sb5#
    • 1...Se6
      • 2.S3c4#
      • 2.S5c4#
  • Tries
    • 1.Re5?
      • threat
        • 2.S3c4#
        • 2.Qb4#
      • 1...e6
        • 2.Qb4#
      • 1...Qf7
        • 2.Qb4#
      • 1...Qg8
        • 2.Qb4#
      • 1...Bd5
        • 2.Qxd5#
        • 2.Qb4#
      • 1...Sc6
        • 2.S3c4#
        • 2.Sb5#
        • 2.S5c4#
        • 2.Sb7#
      • 1...Se6
        • 2.S3c4#
      • 1...Qc8!
    • 1.Qf7?
      • threat
        • 2.S3c4#
        • 2.S5c4#
      • 1...Bd5
        • 2.Rxd5#
        • 2.Qxd5#
      • 1...Qxf7!
  • Keys
    • 1.Rb5!
      • threat
        • 2.Be5#
      • 1...Sxb5
        • 2.Sxb5#
      • 1...Bd5
        • 2.Qxd5#
      • 1...e5
        • 2.Bc5#
      • 1...e6
        • 2.Qb4#
      • 1...Sc6
        • 2.Sb7#
      • 1...Se6
        • 2.S3c4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::QAR1(B),XB(a)
    • B(a);N_GUARD::S(E),XB(a)
    • S(e);N_GUARD::S(A),XS(e)
    • S(e);N_GUARD::S(A)
  • Tries
    • Try
      • R(F);
      • Threat
        • DUALS(2)
      • Vars
        • P(g);::QAB(B)
        • Q(i);::QAB(B)
        • S(h);::S(A)
      • Refutation
        • Q(i);
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Refutation
        • Q(i);XQ(B)
  • Actual
    • R(F);
    • Threat
      • B(C)
    • Vars
      • S(e);XR(F)::S(A),XS(e)
      • B(a);N_GUARD::QAR1(B),XB(a)
      • P(g);SBLOCK::B(C)
      • P(g);SBLOCK::QAB(B)
      • S(e);SBLOCK,S_CUTB(a)::S(E)
      • S(h);SBLOCK::S(A)
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