MESON Chess Problem Database

Problem Display
PID: 70612 (8/7Q/8/8/5RR1/2p1k3/2P1b1B1/1K2b3 w - - 0 1)

Frankenstein, Edward Nathan

The Field, 1888

(First published on Sat Mar 24 1888)

8/7Q/8/8/5RR1/2p1k3/2P1b1B1/1K2b3

#2

6 + 4

187 The Chess Bouquet 1897
15351 SCPF/BCPS Black Books 2017
15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bd2
      • 2.Qe4#
      • 2.Qa7#
      • 2.Qe7#
    • 1...Bd1
      • 2.Qd3#
    • 1...Bd3
      • 2.Qxd3#
  • Tries
    • 1.Re4+?
      • 1...Kf2
        • 2.Qa7#
      • 1...Kd2!
  • Keys
    • 1.Rf2!
      • 1...Kd2
        • 2.Qd3#
      • 1...Kxf2
        • 2.Qa7#
      • 1...Bxf2
        • 2.Qh6#
      • 1...Bxg4
        • 2.Qa7#
      • 1...Bd2
        • 2.Qa7#
      • 1...Bd1
        • 2.Qa7#
      • 1...Bf1
        • 2.Qa7#
      • 1...Bd3
        • 2.Qa7#
      • 1...Bf3
        • 2.Qa7#
      • 1...Bc4
        • 2.Qa7#
      • 1...Bb5
        • 2.Qa7#
      • 1...Ba6
        • 2.Qa7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • B(b);N_GUARD::QAR1(F)
    • B(b);N_GUARD,P_PINP(B)::QAR1(F),XB(b)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(d);S_FLIGHT::QAB(F)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • R(D);
    • Vars
      • K(d);P_SPINB(b),S_FLIGHT::QAR1(F)
      • K(d);S_FLIGHT,XR(D)::QAB(F)
      • B(a);SBLOCK,XR(D)::QAB(F)
      • B(b);XR(E)::QAB(F)
      • B(a);SBLOCK::QAB(F)
      • B(b);::QAB(F)
      • B(b);P_PINP(B)::QAB(F)
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