MESON Chess Problem Database

Problem Display
PID: 211380 (3n2n1/PpP2pQ1/bK1B1r1r/Pp5p/1p1kPP2/1R6/3N3p/6b1 w - - 0 1)

Lobusov, Andrey Jakovlevic

Schach-Echo, 1984

3n2n1/PpP2pQ1/bK1B1r1r/Pp5p/1p1kPP2/1R6/3N3p/6b1

#2

10 + 13

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sc6
      • 2.Bc5#
    • 1...Se6
      • 2.Be5#
    • 1...h1B
      • 2.Qxg1#
  • Tries
    • 1.Qxf6+?
      • 1...Sxf6
        • 2.Bc5#
        • 2.Be5#
      • 1...Rxf6!
    • 1.Qg3?
      • threat
        • 2.Rd3#
        • 2.Rxb4#
        • 2.Qd3#
      • 1...Be3
        • 2.Qxe3#
      • 1...Sc6
        • 2.Bc5#
        • 2.Rd3#
        • 2.Qd3#
      • 1...Rxd6+!
  • Keys
    • 1.c8Q!
      • threat
        • 2.Qc5#
      • 1...Sc6
        • 2.Bc5#
      • 1...Se6
        • 2.Be5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • S(l);N_PINB(G)::B(G)
    • P(b);N_GUARD::QAB(J),XB(a)
  • Tries
    • Try
      • Q(J);CHECK,N_SPINB(G),XR(h)
      • Refutation
        • R(i);P_PINB(G),XQ(J)
    • Try
      • Q(J);N_PINR(h)
      • Threat
        • DUALS(3)
      • Vars
        • B(a);N_GUARD::QAB1(J),XB(a)
      • Refutation
        • R(h);CHECK,XB(G)
  • Actual
    • P(I);
    • Threat
      • QAB1(I)
    • Vars
      • S(l);N_PINB(G)::B(G)
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