MESON Chess Problem Database

Problem Display
PID: 271004 (K7/3B2B1/2R5/1ppk4/4bRn1/2P3P1/2P2n2/4Q3 w - - 0 1)

Pimenov, Sergey Ivanovich

Pimenov, Vitaly Ivanovich

Tijdschrift vd NSB, 1929

K7/3B2B1/2R5/1ppk4/4bRn1/2P3P1/2P2n2/4Q3

#2

9 + 6

17397 Ling Notebooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Be6#
    • 1...Bh1
      • 2.Qe6#
    • 1...Bxc2
      • 2.Qe6#
    • 1...Bg2
      • 2.Qe6#
    • 1...Bd3
      • 2.Qe6#
    • 1...Bf3
      • 2.Qe6#
    • 1...Bg6
      • 2.Qe6#
    • 1...Bh7
      • 2.Qe6#
    • 1...Sd1
      • 2.Qxe4#
    • 1...Sh1
      • 2.Qxe4#
    • 1...Sd3
      • 2.Qxe4#
    • 1...Sh3
      • 2.Qxe4#
  • Tries
    • 1.Qe3?
      • threat
        • 2.Qxc5#
      • 1...Kc4
        • 2.Be6#
        • 2.Qd4#
        • 2.Qxc5#
      • 1...Sd3
        • 2.Qxe4#
      • 1...c4
        • 2.Qd4#
        • 2.Qc5#
      • 1...Sxe3!
    • 1.c4+?
      • 1...Kxc4
        • 2.Be6#
      • 1...bxc4!
  • Keys
    • 1.Bf8!
      • threat
        • 2.Rxc5#
      • 1...Kc4
        • 2.Be6#
      • 1...Ke5
        • 2.Rf5#
      • 1...Sd3
        • 2.Qxe4#
      • 1...c4
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 10
  • Sets
    • K(f);N_GUARD,P_PINR(F),P_SPINB(b),P_SPINP(e),S_FLIGHT::B(G)
    • B(b);OGATE::QAB1(A)
    • B(b);OGATE,XP(B)::QAB1(A)
    • S(a);N_GUARD::QAB1(A),XB(b)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR1(A),XP(e)
      • Vars
        • S(a);N_GUARD::QAB1(A),XB(b)
      • Refutation
        • S(c);XQ(A)
    • Try
      • P(C);CHECK
      • Vars
        • K(f);N_GUARD,P_PINR(F),P_SPINB(b),P_SPINP(e),S_FLIGHT,XP(C)::B(G)
      • Refutation
        • P(d);XP(C)
  • Actual
    • B(H);
    • Threat
      • R1(F),XP(e)
    • Vars
      • K(f);N_GUARD,P_PINR(F),P_SPINB(b),P_SPINP(e),S_FLIGHT::B(G)
      • K(f);N_GUARD,P-FLIGHT,P_PINR(F),P_SPINB(b),S_CUTS(c)::R1(E)
      • S(a);N_GUARD::QAB1(A),XB(b)
      • P(e);::R1(F)
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