MESON Chess Problem Database

Problem Display
PID: 180276 (R7/3p2p1/3P2Kb/4P1p1/5PP1/3N1k1P/4R3/3BB2b w - - 0 1)

Lider, Valentin Viktorovich

Die Schwalbe, 1973

R7/3p2p1/3P2Kb/4P1p1/5PP1/3N1k1P/4R3/3BB2b

#2

11 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sc1?
      • 1...Kxf4
        • 2.Rf8#
      • 1...gxf4
        • 2.Ra3#
      • 1...Bg2!
    • 1.Sb2?
      • 1...Kxf4
        • 2.Rf8#
      • 1...gxf4
        • 2.Ra3#
      • 1...Bg2!
    • 1.Sb4?
      • 1...Kxf4
        • 2.Rf8#
      • 1...gxf4
        • 2.Ra3#
      • 1...Bg2!
    • 1.Bf2?
      • 1...gxf4
        • 2.Se1#
      • 1...Bg2
        • 2.Re1#
        • 2.Re3#
      • 1...Kg2!
    • 1.Bh4?
      • 1...gxf4
        • 2.Se1#
      • 1...Bg2
        • 2.Re1#
      • 1...gxh4!
    • 1.Ra3?
      • 1...gxf4
        • 2.Sc1#
        • 2.Sb2#
        • 2.Sb4#
        • 2.Sc5#
      • 1...Bg2!
    • 1.Ra4?
      • 1...Bg2
        • 2.Ree4#
      • 1...gxf4!
    • 1.e6?
      • 1...gxf4
        • 2.Se5#
      • 1...Bg2
        • 2.Re5#
      • 1...dxe6!
  • Keys
    • 1.Sc5!
      • 1...Kxf4
        • 2.Rf8#
      • 1...gxf4
        • 2.Ra3#
      • 1...Bg2
        • 2.Re4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XP(F)::R(K)
        • P(c);SBLOCK,XP(F)::R(K)
      • Refutation
        • B(a);
    • Try
      • S(D);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XP(F)::R(K)
        • P(c);SBLOCK,XP(F)::R(K)
      • Refutation
        • B(a);
    • Try
      • S(D);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XP(F)::R(K)
        • P(c);SBLOCK,XP(F)::R(K)
      • Refutation
        • B(a);
    • Try
      • B(B);
      • Vars
        • P(c);SBLOCK,XP(F)::S(D)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • P(c);SBLOCK,XP(F)::S(D)
        • B(a);SBLOCK::B(A)+R(C)
      • Refutation
        • P(c);XB(B)
    • Try
      • R(K);
      • Refutation
        • B(a);
    • Try
      • R(K);
      • Vars
        • B(a);SBLOCK::B(A)+R(C)
      • Refutation
        • P(c);XP(F)
    • Try
      • P(H);
      • Vars
        • P(c);SBLOCK,XP(F)::S(D)
        • B(a);SBLOCK::B(A)+R(C)
      • Refutation
        • P(e);XP(H)
  • Actual
    • S(D);
    • Vars
      • K(b);OGATEB,P-FLIGHT,XP(F)::R(K)
      • P(c);SBLOCK,XP(F)::R(K)
      • B(a);SBLOCK::B(A)+R(C)
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