MESON Chess Problem Database

Problem Display
PID: 85043 (3n4/b3p3/3pb2p/2NB1P1R/1Q3Pk1/Kp3N1R/1P1PPr1p/3n2rq w - - 0 1)

Pankratiev, Aleksandr Nikolaevich

Boletim da UBP, 1992

3n4/b3p3/3pb2p/2NB1P1R/1Q3Pk1/Kp3N1R/1P1PPr1p/3n2rq

#2

12 + 13

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rg3
      • 2.R3h4#
    • 1...Bxf5
      • 2.R5h4#
    • 1...dxc5
      • 2.Se5#
  • Tries
    • 1.Sd4?
      • threat
        • 2.R5h4#
      • 1...Kxf4
        • 2.Sf3#
      • 1...Rxf4!
    • 1.Se4?
      • threat
        • 2.R3h4#
      • 1...Kxf4
        • 2.Sc5#
      • 1...Rxe2!
    • 1.e4?
      • threat
        • 2.R5h4#
      • 1...Kxf4
        • 2.e5#
      • 1...Rg3!
  • Keys
    • 1.Be4!
      • threat
        • 2.R5h4#
      • 1...Kxf4
        • 2.Bd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • R(b);SBLOCK::R1(F)
    • B(i);SBLOCK,XP(K)::R1(L)
    • P(h);N_GUARD,XS(I)::S(E)
  • Tries
    • Try
      • S(E);
      • Threat
        • R1(L)
      • Vars
        • K(g);P-FLIGHT,XP(H)::QAR(G)+S(E)
      • Refutation
        • R(d);XP(H)
    • Try
      • S(I);
      • Threat
        • R1(F)
      • Vars
        • K(g);P-FLIGHT,XP(H)::QAR(G)+S(I)
      • Refutation
        • R(d);XP(C)
    • Try
      • P(C);
      • Threat
        • R1(L)
      • Vars
        • K(g);P-FLIGHT,XP(H)::QAR(G)+P(C)
      • Refutation
        • R(b);
  • Actual
    • B(J);
    • Threat
      • R1(L)
    • Vars
      • K(g);OGATEB,P-FLIGHT,XP(H)::QAR(G)+B(J)
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