MESON Chess Problem Database

Problem Display
PID: 38158 (Kn6/b1r1p3/4Bp2/R7/3QNk1P/3P3r/3R1P2/2B2N1b w - - 0 1)

Loshinski, Lev Ilich

1st Prize, Shakhmaty v SSSR, 1964

Kn6/b1r1p3/4Bp2/R7/3QNk1P/3P3r/3R1P2/2B2N1b

#2

11 + 8

3747 FIDE Album (1962-1964) 1968
328 Schweizerische Schachzeitung 1969
721 Variantim 1991

SOLUTION

  • SOUND
  • Sets
    • 1...Rf3
      • 2.Sc5#
    • 1...Bf3
      • 2.Rc2#
    • 1...Bxe4+
      • 2.Qxe4#
  • Keys
    • 1.f3!
      • threat
        • 2.Rf5#
      • 1...Kxf3
        • 2.Rf2#
      • 1...Rxf3
        • 2.Sc5#
      • 1...Bxf3
        • 2.Rc2#
      • 1...Rc5
        • 2.Sg5#
      • 1...Bc5
        • 2.Rf2#
      • 1...f5
        • 2.Rxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(b);N_PINS(G),SBLOCK::QAR(F)+S(G)
    • B(a);SBLOCK,S_CUTR(b)::B(A)+R(C)
    • B(a);CHECK,OGATE,P_SPINB(a),XS(G)::QAR1(F),XB(a)
  • Actual
    • P(D);N_SPINS(G)
    • Threat
      • R1(I)
    • Vars
      • K(c);P-FLIGHT,XP(D)::R1(C)
      • R(b);SBLOCK,XP(D)::QAR(F)+S(G)
      • B(a);P_PINS(G),SBLOCK,XP(D)::B(A)+R(C)
      • R(f);S_CUTB(e)::QAR(F)+S(G)
      • B(e);S_CUTR(f)::B(A)+R(C)
      • P(d);::R1(I),XP(d)
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