MESON Chess Problem Database

Problem Display
PID: 157637 (8/4N3/5pKp/1P2p3/3pk1n1/P5P1/4P3/2Q5 w - - 0 1)

Meyer, Max Julius

Northern Figaro, 1890

(First published on Sat Mar 1 1890)

8/4N3/5pKp/1P2p3/3pk1n1/P5P1/4P3/2Q5

#2

7 + 6

15351 SCPF/BCPS Black Books 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Sf5?
      • threat
        • 2.Qh1#
        • 2.Qc6#
      • 1...Kd5
        • 2.Qc6#
      • 1...Sf2
        • 2.Qc6#
      • 1...Sh2
        • 2.Qc6#
      • 1...Se3!
    • 1.Qd2?
      • threat
        • 2.Qd3#
      • 1...d3
        • 2.Qxd3#
      • 1...Sf2!
    • 1.Qb1+?
      • 1...d3
        • 2.Qxd3#
      • 1...Ke3!
    • 1.Qc2+?
      • 1...d3
        • 2.Qxd3#
      • 1...Ke3!
    • 1.Qc3?
      • threat
        • 2.Qd3#
        • 2.Qf3#
      • 1...d3
        • 2.Qxd3#
      • 1...Sf2
        • 2.Qf3#
      • 1...Sh2
        • 2.Qd3#
      • 1...Se3
        • 2.Qd3#
      • 1...dxc3!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Qh1#
      • 1...Kxd5
        • 2.Qc6#
      • 1...d3
        • 2.Qc4#
      • 1...Sf2
        • 2.Sxf6#
      • 1...Sh2
        • 2.Sxf6#
      • 1...Se3
        • 2.Sxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • S(c);::QAB(A)
      • Refutation
        • S(c);
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • P(a);::QAB1(A),XP(a)
      • Refutation
        • S(c);
    • Try
      • Q(A);CHECK
      • Vars
        • P(a);P_SPINP(a)::QAB1(A),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • P(a);P_SPINP(a)::QAB1(A),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);::QAB1(A),XP(a)
        • S(c);::QAB1(A)
      • Refutation
        • P(a);XQ(A)
  • Actual
    • S(G);
    • Threat
      • QAB(A)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(G)::QAB1(A)
      • P(a);OGATEB::QAR2(A)
      • S(c);N_GUARD::S(G),XP(e)
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