MESON Chess Problem Database

Problem Display
PID: 68363 (3QK3/8/8/1Np5/2R5/8/1p1pp3/1B1kN3 w - - 0 1)

Baev, Georgy S

Loshinski, Lev Ilich

64 Shakhmatnoe obozrenie, 1929

3QK3/8/8/1Np5/2R5/8/1p1pp3/1B1kN3

#2

6 + 5

5314 Grossmeister Shakhmatnoi Kompozitsii 1980
3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Tries
    • 1.Sc3+?
      • 1...Kc1
        • 2.Sd3#
      • 1...Kxe1!
    • 1.Bc2+?
      • 1...Kc1
        • 2.Sd3#
      • 1...Kxe1!
    • 1.Qd4?
      • 1...Kxe1
        • 2.Qg1#
      • 1...cxd4!
  • Keys
    • 1.Qg5!
      • 1...Kxe1
        • 2.Qg1#
      • 1...dxe1Q
        • 2.Bc2#
      • 1...dxe1S
        • 2.Sc3#
      • 1...dxe1B
        • 2.Bc2#
      • 1...dxe1R
        • 2.Sc3#
        • 2.Bc2#
        • 2.Qd8#
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(a);N_SPINP(c),P-FLIGHT::S(B)
      • Refutation
        • K(a);N_SPINP(c),P-FLIGHT,XS(B)
    • Try
      • B(A);CHECK
      • Vars
        • K(a);N_SPINP(c),P-FLIGHT::S(B)
      • Refutation
        • K(a);N_SPINP(c),P-FLIGHT,XS(B)
    • Try
      • Q(E);
      • Vars
        • K(a);N_SPINP(c),OGATEB,P-FLIGHT,XS(B)::QAR2(E)
      • Refutation
        • P(e);N_SPINP(c),XQ(E)
  • Actual
    • Q(E);N_PINP(c)
    • Vars
      • K(a);OGATEB,P-FLIGHT,XS(B)::QAR2(E)
      • P(c);SBLOCK,XS(B)::B(A)
      • P(c);SBLOCK,XS(B)::S(D)
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