MESON Chess Problem Database

Problem Display
PID: 67908 (8/K7/NB6/3R1P2/2P1kpQ1/4Nr2/6r1/4n2B w - - 0 1)

Salai (Snr), Ladislav

Prize, Hlas l'udu, 1977

8/K7/NB6/3R1P2/2P1kpQ1/4Nr2/6r1/4n2B

#2

9 + 5

5865 Czech Album (1976-1978) 1983

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe3
      • 2.Sc5#
  • Tries
    • 1.Sf1?
      • threat
        • 2.Sc5#
      • 1...Rxf1
        • 2.Qe2#
      • 1...Ra2
        • 2.Sg3#
      • 1...Ra3
        • 2.Sd2#
      • 1...Sd3!
    • 1.Bxg2?
      • 1...Sc2
        • 2.Bxf3#
        • 2.Qxf3#
      • 1...Sd3
        • 2.Bxf3#
        • 2.Qxf3#
      • 1...Sxg2!
    • 1.Qxg2?
      • 1...fxe3
        • 2.Qg4#
      • 1...Sc2
        • 2.Qxf3#
        • 2.Qxc2#
      • 1...Sd3
        • 2.Qxf3#
      • 1...Sxg2!
  • Keys
    • 1.Sd1!
      • threat
        • 2.Sc5#
      • 1...Ra2
        • 2.Sc3#
      • 1...Ra3
        • 2.Sf2#
      • 1...Sd3
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • R(c);P_SPINR(b),SBLOCK,XS(B)::S(G)
  • Tries
    • Try
      • S(B);
      • Threat
        • S(G)
      • Vars
        • R(c);OGATE,P_SPINR(b),XS(B)::QAR2(D)
        • R(b);N_GUARD,P_PINS(G),P_SPINR(c)::S(B)
        • R(c);P_PINS(G),P_SPINR(b)::S(B)
      • Refutation
        • S(a);
    • Try
      • B(A);P_PINR(c),XR(b)
      • Refutation
        • S(a);N_SPINR(c),XB(A)
    • Try
      • Q(D);N_PINP(e),P_PINR(c),XR(b)
      • Vars
        • P(e);OGATEB,XS(B)::QAR2(D)
        • S(a);N_GUARD::QAB1(D),XR(c)
      • Refutation
        • S(a);N_SPINR(c),XQ(D)
  • Actual
    • S(B);
    • Threat
      • S(G)
    • Vars
      • R(b);P_PINS(G),P_SPINR(c)::S(B)
      • R(c);N_GUARD,P_PINS(G),P_SPINR(b)::S(B)
      • S(a);S_CUTR(c)::S(B)
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