MESON Chess Problem Database

Problem Display
PID: 177750 (n2R4/1p3Kp1/1P6/2p1Npp1/3PkB2/2p1N1pp/2P4b/5R2 w - - 0 1)

Yarosh, Leonid Vladimirovich

Comm., Chepizhni-50 JT, 1985

n2R4/1p3Kp1/1P6/2p1Npp1/3PkB2/2p1N1pp/2P4b/5R2

#2

9 + 11

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sd1?
      • threat
        • 2.Sxc3#
      • 1...gxf4
        • 2.Re1#
      • 1...cxd4!
    • 1.Sd3?
      • threat
        • 2.Sxc5#
      • 1...cxd4
        • 2.Sc5#
        • 2.Re8#
      • 1...c4
        • 2.Sc5#
      • 1...gxf4!
    • 1.Sf3?
      • threat
        • 2.Sxg5#
      • 1...gxf4
        • 2.Re8#
      • 1...g4
        • 2.Sg5#
      • 1...Kxf4!
    • 1.Sd7?
      • threat
        • 2.Sxc5#
      • 1...Kxd4
        • 2.Sf6#
      • 1...cxd4
        • 2.Sc5#
        • 2.Re8#
      • 1...c4
        • 2.Sc5#
      • 1...gxf4!
    • 1.Re1?
      • threat
        • 2.Sg2#
      • 1...Kxf4
        • 2.Sd5#
      • 1...g2
        • 2.Sxg2#
      • 1...Bg1!
    • 1.Re8?
      • threat
        • 2.Sc6#
      • 1...Kxd4
        • 2.Sf3#
      • 1...Sc7!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Sxc3#
      • 1...Kxd4
        • 2.Sf6#
      • 1...cxd4
        • 2.Re1#
      • 1...gxf4
        • 2.Rxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C),XP(b)
      • Vars
        • P(h);SBLOCK,XB(E)::R(A)
      • Refutation
        • P(f);XP(D)
    • Try
      • S(F);
      • Threat
        • S(F),XP(f)
      • Vars
        • P(f);::S(F)
      • Refutation
        • P(h);XB(E)
    • Try
      • S(F);
      • Threat
        • S(F),XP(h)
      • Vars
        • P(h);SBLOCK,XB(E)::R(I)
        • P(h);::S(F)
      • Refutation
        • K(e);P-FLIGHT,XB(E)
    • Try
      • S(F);
      • Threat
        • S(F),XP(f)
      • Vars
        • K(e);P-FLIGHT,XP(D)::R(I)+S(F)
        • P(f);::S(F)
      • Refutation
        • P(h);XB(E)
    • Try
      • R(A);
      • Threat
        • R(A)+S(C)
      • Vars
        • K(e);P-FLIGHT,XB(E)::S(C)
        • P(c);::R(A)+S(C),XP(c)
      • Refutation
        • B(a);
    • Try
      • R(I);
      • Threat
        • R(I)+S(F)
      • Vars
        • K(e);P-FLIGHT,XP(D)::S(F)
      • Refutation
        • S(k);
  • Actual
    • S(C);
    • Threat
      • S(C),XP(b)
    • Vars
      • K(e);P-FLIGHT,XP(D)::R(I)+S(C)
      • P(f);SBLOCK,XP(D)::R(A)
      • P(h);OGATE,XB(E)::R1(A),XP(h)
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