MESON Chess Problem Database

Problem Display
PID: 146791 (6N1/r2pRn1r/pPP1B3/Q2Pkp2/Kp3n2/3R4/3N4/4B3 w - - 0 1)

Soroka, Ivan Ivanovich

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Canadian Chess Chat, 1983

6N1/r2pRn1r/pPP1B3/Q2Pkp2/Kp3n2/3R4/3N4/4B3

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Sc4#
  • Tries
    • 1.Sf3+?
      • 1...Kd6
        • 2.Bxb4#
        • 2.Qxb4#
      • 1...Ke4!
    • 1.Bxd7+?
      • 1...Kd6
        • 2.Sc4#
        • 2.Qxb4#
      • 1...Se6!
    • 1.Bxf7+?
      • 1...Kd6
        • 2.Sc4#
        • 2.Qxb4#
      • 1...Se6!
    • 1.Re3+?
      • 1...Kd6
        • 2.Sc4#
        • 2.Qxb4#
      • 1...Kd4!
  • Keys
    • 1.Bg3!
      • threat
        • 2.d6#
      • 1...Kd6
        • 2.Sc4#
      • 1...dxc6
        • 2.dxc6#
      • 1...Sd6
        • 2.Bf7#
      • 1...d6
        • 2.Bd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::S(B)
  • Tries
    • Try
      • S(B);CHECK
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • B(I);CHECK,XP(g)
      • Refutation
        • S(b);P_SPINS(b)
    • Try
      • B(I);CHECK,XS(h)
      • Refutation
        • S(b);P_SPINS(b)
    • Try
      • R(C);CHECK
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • B(A);P_PINS(b)
    • Threat
      • QAR(E)+P(F)
    • Vars
      • K(c);S_FLIGHT::S(B)
      • P(g);OGATE,XP(H)::QAR(E)+P(F),XP(g)
      • S(h);SBLOCK::R(J)+B(I)
      • P(g);SBLOCK::R(J)+B(I)
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