MESON Chess Problem Database

Problem Display
PID: 244795 (6r1/p2p2p1/6Q1/3p1N2/P1P1P1B1/3k4/P2P4/2KN4 w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Revista Romana de Sah, 1979

6r1/p2p2p1/6Q1/3p1N2/P1P1P1B1/3k4/P2P4/2KN4

#2

10 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...dxc4
      • 2.Sf2#
    • 1...dxe4
      • 2.Sb2#
  • Tries
    • 1.Qb6?
      • threat
        • 2.Qd4#
      • 1...Kxc4
        • 2.Sb2#
        • 2.Be2#
        • 2.Qd4#
        • 2.Qb5#
      • 1...Kxe4
        • 2.Qe3#
        • 2.Qd4#
      • 1...d4
        • 2.Qxd4#
      • 1...axb6!
    • 1.Qf6?
      • threat
        • 2.Qd4#
      • 1...Kxc4
        • 2.Qc3#
        • 2.Qd4#
      • 1...Kxe4
        • 2.Qd4#
      • 1...d4
        • 2.Qxd4#
      • 1...gxf6!
    • 1.Qxg7?
      • threat
        • 2.Qd4#
      • 1...Kxc4
        • 2.Qc3#
        • 2.Qd4#
      • 1...Kxe4
        • 2.Qd4#
      • 1...d4
        • 2.Qxd4#
      • 1...Rxg7!
  • Keys
    • 1.Qd6!
      • threat
        • 2.Qxd5#
      • 1...Kxc4
        • 2.Sb2#
        • 2.Be2#
      • 1...Kxe4
        • 2.Sf2#
      • 1...d4
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • P(b);SBLOCK,XP(F)::S(B)
    • P(b);SBLOCK,XP(G)::S(B)
  • Tries
    • Try
      • Q(J);
      • Threat
        • QAR1(J)
      • Vars
        • P(b);::QAR1(J),XP(b)
      • Refutation
        • P(c);XQ(J)
    • Try
      • Q(J);
      • Threat
        • QAR1(J)
      • Vars
        • K(a);S_FLIGHT,XP(G)::QAR1(J)
        • P(b);::QAR1(J),XP(b)
      • Refutation
        • P(e);XQ(J)
    • Try
      • Q(J);XP(e)
      • Threat
        • QAR1(J)
      • Vars
        • K(a);S_FLIGHT,XP(G)::QAR1(J)
        • P(b);::QAR1(J),XP(b)
      • Refutation
        • R(f);XQ(J)
  • Actual
    • Q(J);P_PINP(b)
    • Threat
      • QAR2(J),XP(b)
    • Vars
      • K(a);N_SPINP(b),S_FLIGHT,XP(G)::S(B)
      • P(b);OGATE::QAR1(J),XP(b)
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