MESON Chess Problem Database

Problem Display
PID: 46120 (6N1/8/2Pp4/R2pk3/4P3/p7/P1PN1PR1/KQ6 w - - 0 1)

Surkov, Ruslan Albertovich

64 Shakhmatnoe obozrenie, 1998

6N1/8/2Pp4/R2pk3/4P3/p7/P1PN1PR1/KQ6

#2

11 + 4

3485 Sachova skladba 1998
56 The Problemist 2002

SOLUTION

  • SOUND
  • Tries
    • 1.Rxd5+?
      • 1...Kf4
        • 2.Rf5#
      • 1...Ke6!
    • 1.Qh1?
      • 1...Kd4
        • 2.Qh8#
      • 1...Kf4
        • 2.Qh2#
      • 1...Ke6!
    • 1.Qb2+?
      • 1...Kf4
        • 2.Qf6#
      • 1...Ke6
        • 2.Qf6#
      • 1...axb2+!
    • 1.Qb4?
      • 1...Kf4
        • 2.Qxd6#
      • 1...Ke6!
    • 1.Qb7?
      • 1...Kd4
        • 2.Qg7#
      • 1...Ke6
        • 2.Qe7#
      • 1...Kf4!
    • 1.Qb8?
      • 1...Kf4
        • 2.Qxd6#
      • 1...Ke6
        • 2.Qe8#
      • 1...Kd4!
  • Keys
    • 1.Qb3!
      • 1...Kd4
        • 2.Rxd5#
      • 1...Kf4
        • 2.Qg3#
      • 1...Ke6
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(I);CHECK,XP(b)
      • Vars
        • K(c);OGATE,S_FLIGHT::R1(I)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(c);N_SPINP(b),S_FLIGHT::QAB(B)
      • Refutation
        • K(c);N_SPINP(b),P-FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);N_SPINP(b),OGATE,S_FLIGHT::QAR2(B)
        • K(c);N_SPINP(b),OGATE,P-FLIGHT::QAR1(B)
      • Refutation
        • P(a);CHECK,XQ(B)
    • Try
      • Q(B);
      • Vars
        • K(c);N_SPINP(b),S_FLIGHT::QAB(B),XP(d)
      • Refutation
        • K(c);N_SPINP(b),P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(c);N_SPINP(b),S_FLIGHT::QAB(B)
        • K(c);N_SPINP(b),P-FLIGHT::QAR1(B)
      • Refutation
        • K(c);N_SPINP(b),S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(c);N_SPINP(b),P_SPINP(d),S_FLIGHT::QAB(B),XP(d)
        • K(c);N_SPINP(b),P-FLIGHT::QAR2(B)
      • Refutation
        • K(c);N_SPINP(b),S_FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(c);N_SPINP(b),S_FLIGHT::R1(I),XP(b)
      • K(c);N_SPINP(b),S_FLIGHT::QAB1(B)
      • K(c);P-FLIGHT::QAB1(B),XP(b)
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