MESON Chess Problem Database

Problem Display
PID: 136803 (8/6R1/p1k2K2/Pr3R2/BPn1P3/5p2/8/7Q w - - 0 1)

Ellerman, Arnoldo

The Field, 1921

(First published on Sat Sep 24 1921)

8/6R1/p1k2K2/Pr3R2/BPn1P3/5p2/8/7Q

#2

8 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Sd6
      • 2.Rc5#
    • 1...f2
      • 2.e5#
  • Tries
    • 1.Bxb5+?
      • 1...Kd6
        • 2.Rd5#
        • 2.Rd7#
      • 1...axb5!
    • 1.Qh2?
      • threat
        • 2.Rc5#
        • 2.Rc7#
        • 2.Qc7#
      • 1...Sxa5
        • 2.Qc7#
      • 1...Sd6
        • 2.Rc5#
      • 1...Se5!
  • Keys
    • 1.Kg5!
      • 1...Kd6
        • 2.Qh6#
      • 1...Sxa5
        • 2.Qh6#
      • 1...Sb2
        • 2.Qh6#
      • 1...Sd2
        • 2.Qh6#
      • 1...Sa3
        • 2.Qh6#
      • 1...Se3
        • 2.Qh6#
      • 1...Se5
        • 2.Rf6#
      • 1...Sb6
        • 2.Qh6#
      • 1...Sd6
        • 2.Rc5#
      • 1...f2
        • 2.e5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(b);SBLOCK::R1(F)
    • P(a);::QAB(A)+P(D)
  • Tries
    • Try
      • B(B);CHECK,XR(c)
      • Refutation
        • P(d);XB(B)
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Vars
        • S(b);XP(E)::QAR1(A)
        • S(b);::R1(F)
      • Refutation
        • S(b);
  • Actual
    • K(G);P_SPINR(F),S_FLIGHT
    • Vars
      • K(e);N_SPINR(c),P-FLIGHT::QAR(A)
      • S(b);N_GUARD,XP(E)::QAR(A)
      • S(b);N_GUARD::QAR(A)
      • S(b);N_PINR(F)::R(F)
      • S(b);SBLOCK::R1(F)
      • P(a);::QAB(A)+P(D)
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