MESON Chess Problem Database

Problem Display
PID: 156515 (1K3Rbr/4p3/Q4N1p/4kp2/7R/3p4/5P2/8 w - - 0 1)

Meyer, Max Julius

Birmingham Daily Post, 1908

(First published on Tue Aug 4 1908)

1K3Rbr/4p3/Q4N1p/4kp2/7R/3p4/5P2/8

#2

6 + 7

15351 SCPF/BCPS Black Books 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Sd7#
  • Tries
    • 1.Qb5+?
      • 1...Ke6
        • 2.Qd5#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Kd6!
    • 1.Qa5+?
      • 1...Ke6
        • 2.Qd5#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Kd6!
    • 1.Qb6?
      • threat
        • 2.f4#
      • 1...f4
        • 2.Rh5#
      • 1...exf6!
  • Keys
    • 1.Rd8!
      • threat
        • 2.f4#
      • 1...exf6
        • 2.Qd6#
      • 1...Be6
        • 2.Qa1#
      • 1...f4
        • 2.Rh5#
      • 1...e6
        • 2.Qa1#
      • 1...Bd5
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(f);P_PINR(F),SBLOCK::S(D)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(C)
        • B(f);N_GUARD,P_PINR(F),P_SPINB(f)::QAR1(C),XB(f)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(C)
        • B(f);N_GUARD,P_PINR(F),P_SPINB(f)::QAR1(C),XB(f)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • P(A)
      • Vars
        • P(c);OGATEB,SBLOCK::R(B)
      • Refutation
        • P(e);XS(D)
  • Actual
    • R(F);
    • Threat
      • P(A)
    • Vars
      • P(e);N_GUARD,XS(D)::QAB1(C)
      • B(f);P_PINR(F),SBLOCK::QAB(C)
      • P(c);OGATEB,SBLOCK::R(B)
      • P(e);SBLOCK::QAB(C)
      • B(f);P_PINR(F),SBLOCK::S(D)
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