MESON Chess Problem Database

Problem Display
PID: 219893 (8/8/1pnpNK2/1P1k1P2/3p4/3p4/3R4/3Q4 w - - 0 1)

Sorokin, Evgeny Pavlovich

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Land og Folk, 1971

8/8/1pnpNK2/1P1k1P2/3p4/3p4/3R4/3Q4

#2

6 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qg4?
      • 1...Sb4
        • 2.Qxd4#
      • 1...Sa5
        • 2.Qxd4#
      • 1...Se5
        • 2.Qxd4#
      • 1...Sa7
        • 2.Qxd4#
      • 1...Se7
        • 2.Qxd4#
      • 1...Sb8
        • 2.Qxd4#
      • 1...Sd8
        • 2.Qxd4#
      • 1...Kc4!
  • Keys
    • 1.Rxd3!
      • 1...Kc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qf3#
      • 1...Sb4
        • 2.Rxd4#
      • 1...Sa5
        • 2.Rxd4#
      • 1...Se5
        • 2.Rxd4#
      • 1...Sa7
        • 2.Rxd4#
      • 1...Se7
        • 2.Rxd4#
      • 1...Sb8
        • 2.Rxd4#
      • 1...Sd8
        • 2.Rxd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Vars
        • S(e);N_GUARD::QAR1(A),XP(b)
      • Refutation
        • K(c);P_SPINP(b),S_FLIGHT
  • Actual
    • R(B);P_PINP(b),XP(a)
    • Vars
      • K(c);N_SPINP(b),S_FLIGHT::QAB1(A)
      • S(e);N_GUARD::R1(B),XP(b)
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