MESON Chess Problem Database

Problem Display
PID: 59738 (8/5N2/6n1/3p1P1R/r3k3/1N1r1p1R/2Q4b/2B4K w - - 0 1)

Llamas, Juan Garcia

01. WCCT, 1970

8/5N2/6n1/3p1P1R/r3k3/1N1r1p1R/2Q4b/2B4K

#2

8 + 7

3751 FIDE Album (1968-1970) 1977

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Sc5#
    • 1...Se5
      • 2.Sd6#
    • 1...f2
      • 2.Qxd3#
    • 1...d4
      • 2.Qc6#
  • Tries
    • 1.Qe2+?
      • 1...Re3
        • 2.Qxe3#
      • 1...fxe2!
  • Keys
    • 1.Rxf3!
      • threat
        • 2.Qxd3#
      • 1...Kxf3
        • 2.Qg2#
      • 1...d4
        • 2.Qc6#
      • 1...Rd4
        • 2.Sd2#
      • 1...Sf4
        • 2.Re3#
      • 1...Se5
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(d);SBLOCK::S(D)
    • S(g);SBLOCK,S_CUTB(a)::S(H)
    • P(c);::QAB1(C),XR(b)
    • P(f);OGATEB::QAB(C)
  • Tries
    • Try
      • Q(C);CHECK,N_PINR(b)
      • Vars
        • R(b);N_GUARD,P_SPINR(b)::QAR1(C),XR(b)
      • Refutation
        • P(c);XQ(C)
  • Actual
    • R(E);XP(c)
    • Threat
      • QAB1(C),XR(b)
    • Vars
      • K(e);N_SPINR(b),OGATEB,S_FLIGHT,XR(E)::QAB1(C)
      • P(f);OGATEB::QAB(C)
      • R(d);SBLOCK::S(D)
      • S(g);SBLOCK::R1(E)
      • S(g);SBLOCK::S(H)
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