MESON Chess Problem Database

Problem Display
PID: 44971 (8/2p5/3p4/1Rnk1NQ1/8/2K5/3nB3/3R4 w - - 0 1)

Frankenstein, Edward Nathan

Source?, 0000

8/2p5/3p4/1Rnk1NQ1/8/2K5/3nB3/3R4

#2

6 + 5

3316 Chess Problem Text Book 1887
119 Tidskrift for Schack 1909
15351 SCPF/BCPS Black Books 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Sg3#
  • Tries
    • 1.Bf3+?
      • 1...Ke5
        • 2.Sd4#
        • 2.Sg7#
      • 1...Ke6!
  • Keys
    • 1.Bg4!
      • 1...Ke4
        • 2.Sg3#
      • 1...Ke5
        • 2.Sg3#
      • 1...Kc6
        • 2.Sd4#
      • 1...Ke6
        • 2.Sh6#
      • 1...c6
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINS(a),S_FLIGHT::S(E)
  • Tries
    • Try
      • B(B);CHECK
      • Refutation
        • K(c);N_SPINS(a),S_FLIGHT
  • Actual
    • B(B);
    • Vars
      • K(c);N_SPINS(a),S_FLIGHT::S(E)
      • K(c);N_SPINS(a),P-FLIGHT,P_SPINS(b)::QAR(F)+S(E)
      • K(c);N_SPINS(a),S_FLIGHT::B(B)+S(E)
      • P(e);SBLOCK::QAR(F)+S(E)
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