MESON Chess Problem Database

Problem Display
PID: 244783 (8/8/1pPPpp2/1pNk1b1R/1p1P1B2/1R1N4/B1Q3P1/1K6 w - - 0 1)

Dombrovskis, Alfreds A

Tidskrift for Schack, 1959

8/8/1pPPpp2/1pNk1b1R/1p1P1B2/1R1N4/B1Q3P1/1K6

#2

12 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd4
      • 2.Rxb4#
    • 1...Kxc6
      • 2.Sxb4#
  • Tries
    • 1.Rb2+?
      • 1...Kxd4
        • 2.Rxb4#
      • 1...Kxc6
        • 2.Sxb4#
      • 1...b3!
    • 1.Ra3+?
      • 1...Kxd4
        • 2.Qb2#
        • 2.Qf2#
      • 1...Kxc6
        • 2.Sxb4#
      • 1...b3!
  • Keys
    • 1.Sxe6!
      • 1...Ke4
        • 2.Sxb4#
      • 1...Kxe6
        • 2.Rxb4#

This is a version

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • K(c);N_SPINB(d),P-FLIGHT,XP(G)::R(E),XP(a)
    • K(c);N_SPINB(d),S_FLIGHT,XP(K)::S(F),XP(a)
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • K(c);N_SPINB(d),P-FLIGHT,XP(G)::R(E),XP(a)
        • K(c);N_SPINB(d),S_FLIGHT,XP(K)::S(F),XP(a)
      • Refutation
        • P(a);P_SPINP(a)
    • Try
      • R(E);CHECK
      • Vars
        • K(c);N_SPINB(d),S_FLIGHT,XP(K)::S(F),XP(a)
      • Refutation
        • P(a);P_SPINP(a)
  • Actual
    • S(I);XP(f)
    • Vars
      • K(c);N_SPINB(d),S_FLIGHT::QAB(C)+S(F),XP(a)
      • K(c);N_SPINB(d),S_FLIGHT,XS(I)::B(B)+R(E),XP(a)
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