MESON Chess Problem Database

Problem Display
PID: 92023 (7K/4N3/7B/4p3/3bk3/3q3R/1nR5/1Qn5 w - - 0 1)

Schlechter, Carl

Wiener Schachzeitung, 1898

(First published on Fri Nov 11 1898)

7K/4N3/7B/4p3/3bk3/3q3R/1nR5/1Qn5

#2

6 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qf1
      • 2.Re2#
    • 1...Qe2
      • 2.Rxe2#
    • 1...Qc4
      • 2.Re2#
    • 1...Qb5
      • 2.Re2#
    • 1...Qa6
      • 2.Re2#
    • 1...Qd1
      • 2.Re2#
    • 1...Qa3
      • 2.Re2#
    • 1...Qb3
      • 2.Re2#
    • 1...Qc3
      • 2.Re2#
    • 1...Qf3
      • 2.Re2#
    • 1...Sd1
      • 2.Qb7#
    • 1...Sa4
      • 2.Qb7#
    • 1...Sc4
      • 2.Qb7#
  • Keys
    • 1.Rc4!
      • threat
        • 2.Re3#
      • 1...Sxc4
        • 2.Qb7#
      • 1...Sd1
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 11
  • Sets
    • Q(c);::QAB(A)+R(B),DCHECK
    • Q(c);::QAB(A)+R(B),DCHECK,XQ(c)
    • S(b);OGATE::QAB(A)
  • Actual
    • R(B);P_PINB(d),P_PINQ(c)
    • Threat
      • R1(C)
    • Vars
      • S(b);N_SPINB(d),OGATE,XR(B)::QAB(A)
      • S(b);OGATE::QAB(A)
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