MESON Chess Problem Database

Problem Display
PID: 256516 (1R6/p1NpB3/2kP4/3N3K/5p2/Qnr1b3/8/8 w - - 0 1)

Buchwald, Julius

Wiener Schachzeitung, 1934

1R6/p1NpB3/2kP4/3N3K/5p2/Qnr1b3/8/8

#2

7 + 7

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Qa6#
    • 1...Bc5
      • 2.Qa4#
    • 1...Sd4
      • 2.Qxc3#
    • 1...Sc5
      • 2.Sb4#
  • Tries
    • 1.Qb4?
      • threat
        • 2.Qb5#
      • 1...Rc5
        • 2.Qb7#
      • 1...Sd4
        • 2.Qxc3#
      • 1...a6!
    • 1.Qa5?
      • threat
        • 2.Sb4#
        • 2.Qb5#
      • 1...Rc4
        • 2.Qb5#
      • 1...Rc5
        • 2.Qa6#
      • 1...Bc5
        • 2.Qa4#
        • 2.Qb5#
      • 1...Sd4
        • 2.Sb4#
        • 2.Qxc3#
      • 1...a6
        • 2.Sb4#
      • 1...Sxa5!
    • 1.Qa6+?
      • 1...Bb6
        • 2.Qb5#
      • 1...Kc5!
  • Keys
    • 1.Bf8!
      • threat
        • 2.Se7#
      • 1...Rc5
        • 2.Qa6#
      • 1...Bc5
        • 2.Qa4#
      • 1...Sc5
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • R(b);P_PINS(B),SBLOCK,S_CUTB(c)::QAR2(A)
    • B(c);SBLOCK::QAB(A)
    • S(a);OGATE::QAR(A),XR(b)
    • S(a);SBLOCK::S(B)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • R(b);P_PINS(B),SBLOCK::QAB1(A)
        • S(a);N_GUARD,S_CUTB(c)::QAR(A),XR(b)
      • Refutation
        • P(f);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);::QAB1(A)
        • R(b);P_PINS(B),SBLOCK,S_CUTB(c)::QAR2(A)
        • P(f);::S(B)
      • Refutation
        • S(a);XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • B(c);P_SPINB(c)::QAB1(A)
      • Refutation
        • K(e);P-FLIGHT
  • Actual
    • B(F);
    • Threat
      • S(B)
    • Vars
      • R(b);P_PINS(B),SBLOCK,S_CUTB(c)::QAR2(A)
      • B(c);SBLOCK::QAB(A)
      • S(a);SBLOCK::S(B)
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Developed and maintained by Brian Stephenson.
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