MESON Chess Problem Database

Problem Display
PID: 24453 (8/B4K2/2p5/8/2k5/2N2R2/1Q6/2n5 w - - 0 1)

Fritz, Jindrich

Lada, 1934

8/B4K2/2p5/8/2k5/2N2R2/1Q6/2n5

#2

5 + 3

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Tries
    • 1.Sd1?
      • 1...Kd5
        • 2.Qd4#
      • 1...Sb3
        • 2.Qxb3#
      • 1...Sa2
        • 2.Qb3#
      • 1...Se2
        • 2.Qb3#
      • 1...Sd3
        • 2.Se3#
      • 1...c5!
    • 1.Sa4?
      • 1...Kd5
        • 2.Qd4#
      • 1...Sb3
        • 2.Qxb3#
      • 1...c5
        • 2.Sb6#
      • 1...Sa2
        • 2.Qb3#
      • 1...Se2
        • 2.Qb3#
      • 1...Sd3!
    • 1.Qa2+?
      • 1...Kb4
        • 2.Qa4#
      • 1...Sb3
        • 2.Qa4#
      • 1...Sxa2!
  • Keys
    • 1.Sd5!
      • 1...Kxd5
        • 2.Qd4#
      • 1...cxd5
        • 2.Rc3#
      • 1...Sb3
        • 2.Qxb3#
      • 1...Sd3
        • 2.Se3#
      • 1...Sa2
        • 2.Qb3#
      • 1...Se2
        • 2.Qb3#
      • 1...c5
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
        • S(a);N_GUARD::QAB1(A),XS(a)
        • S(a);N_GUARD::QAB1(A)
        • S(a);SBLOCK::S(B)
      • Refutation
        • P(c);
    • Try
      • S(B);
      • Vars
        • K(b);S_FLIGHT::QAR1(A)
        • S(a);N_GUARD::QAB1(A),XS(a)
        • P(c);SBLOCK::S(B)
        • S(a);N_GUARD::QAB1(A)
      • Refutation
        • S(a);
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
        • S(a);P_SPINS(a)::QAR2(A)
      • Refutation
        • S(a);XQ(A)
  • Actual
    • S(B);
    • Vars
      • K(b);S_FLIGHT,XS(B)::QAR1(A)
      • P(c);SBLOCK,XS(B)::R1(C)
      • S(a);N_GUARD::QAB1(A),XS(a)
      • S(a);SBLOCK::S(B)
      • S(a);N_GUARD::QAB1(A)
      • P(c);SBLOCK::S(B)
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