MESON Chess Problem Database

Problem Display
PID: 238189 (3R4/4n3/BQ2ppp1/3p1n2/4k1P1/N2N1rP1/6P1/2KbBR2 w - - 0 1)

Murashev, Pavel Aleksandrovich

Schach-Aktiv, 2009

3R4/4n3/BQ2ppp1/3p1n2/4k1P1/N2N1rP1/6P1/2KbBR2

#2

11 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.Rf4#
    • 1...Rxg3
      • 2.Rf4#
    • 1...Rf4
      • 2.Rxf4#
    • 1...Bc2
      • 2.gxf3#
    • 1...Bb3
      • 2.gxf3#
    • 1...Ba4
      • 2.gxf3#
    • 1...d4
      • 2.Qxe6#
  • Tries
    • 1.Sc2?
      • threat
        • 2.Qxe6#
      • 1...Bxc2
        • 2.gxf3#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Sd6
        • 2.Qd4#
      • 1...Sg7
        • 2.Qd4#
      • 1...e5
        • 2.Sc5#
      • 1...Sc6!
    • 1.Sb5?
      • threat
        • 2.Sc3#
      • 1...Kxd3
        • 2.Sc3#
        • 2.Sd6#
      • 1...Rxd3
        • 2.Qxe6#
      • 1...Sd4
        • 2.Qxd4#
      • 1...d4!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Sd2#
      • 1...Kxd3
        • 2.Sd6#
      • 1...Rxd3
        • 2.Rf4#
      • 1...dxc4
        • 2.Qxe6#
      • 1...Rf2
        • 2.Sxf2#
      • 1...Sd4
        • 2.Sc5#
      • 1...d4
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 6
  • Sets
    • R(b);OGATE::R1(C)
    • R(b);OGATE,XP(G)::R1(C)
    • R(b);OGATE::R1(C),XR(b)
    • B(a);N_GUARD::P(D),XR(b)
    • P(d);::QAR2(J),XP(f)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR2(J),XP(f)
      • Vars
        • B(a);N_GUARD,XS(E)::P(D),XR(b)
        • S(e);N_GUARD::QAR1(J),XS(e)
        • S(e);N_GUARD::QAR1(J)
        • P(f);SBLOCK::S(F)
      • Refutation
        • S(i);
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • R(b);SBLOCK,XS(F)::QAR2(J),XP(f)
        • S(e);N_GUARD::QAR1(J),XS(e)
      • Refutation
        • P(d);
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(c);P_SPINP(d),S_FLIGHT,XS(F)::B(I)+S(E)
      • R(b);OGATE,SBLOCK,XS(F)::R1(C)
      • P(d);XS(E)::QAR2(J),XP(f)
      • R(b);N_GUARD::S(F),XR(b)
      • S(e);SBLOCK::S(F)
      • P(d);::S(F)
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