MESON Chess Problem Database

Problem Display
PID: 153887 (8/8/4p3/RP1Pk1K1/1Q6/8/8/8 w - - 0 1)

Amirov, Talip Khasanovich

Severnaya pravda, 1983

8/8/4p3/RP1Pk1K1/1Q6/8/8/8

#2

5 + 2

15148 Sadier Collection 2015

SOLUTION

  • SOUND
  • Tries
    • 1.Ra1?
      • 1...exd5
        • 2.Re1#
      • 1...Kxd5!
    • 1.Ra2?
      • 1...exd5
        • 2.Re2#
      • 1...Kxd5!
    • 1.Ra3?
      • 1...exd5
        • 2.Re3#
      • 1...Kxd5!
    • 1.Ra6?
      • 1...exd5
        • 2.Qf4#
      • 1...Kxd5!
    • 1.Ra7?
      • 1...exd5
        • 2.Re7#
      • 1...Kxd5!
    • 1.Ra8?
      • 1...exd5
        • 2.Re8#
      • 1...Kxd5!
  • Keys
    • 1.Ra4!
      • 1...Kxd5
        • 2.Qd4#
      • 1...exd5
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);
      • Vars
        • P(b);SBLOCK,XP(D)::R(B)
      • Refutation
        • K(a);P-FLIGHT,XP(D)
    • Try
      • R(B);
      • Vars
        • P(b);SBLOCK,XP(D)::R(B)
      • Refutation
        • K(a);P-FLIGHT,XP(D)
    • Try
      • R(B);
      • Vars
        • P(b);SBLOCK,XP(D)::R(B)
      • Refutation
        • K(a);P-FLIGHT,XP(D)
    • Try
      • R(B);
      • Vars
        • P(b);SBLOCK,XP(D)::QAB1(A)
      • Refutation
        • K(a);P-FLIGHT,XP(D)
    • Try
      • R(B);
      • Vars
        • P(b);OGATEB,SBLOCK,XP(D)::R(B)
      • Refutation
        • K(a);P-FLIGHT,XP(D)
    • Try
      • R(B);
      • Vars
        • P(b);OGATEB,SBLOCK,XP(D)::R(B)
      • Refutation
        • K(a);P-FLIGHT,XP(D)
  • Actual
    • R(B);
    • Vars
      • K(a);P-FLIGHT,XP(D)::QAR1(A)
      • P(b);OGATEB,SBLOCK,XP(D)::QAR2(A)
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