MESON Chess Problem Database

Problem Display
PID: 58135 (b1B2B1b/2p5/p7/Rn1pk2n/K6Q/R1p5/2P5/5N2 w - - 0 1)

Taliani, Alfonso

Chess Life, 1958

b1B2B1b/2p5/p7/Rn1pk2n/K6Q/R1p5/2P5/5N2

#2

8 + 9

SOLUTION

  • SOUND
  • Tries
    • 1.Qg5+?
      • 1...Ke4
        • 2.Qe3#
      • 1...Kd4!
    • 1.Qe7+?
      • 1...Kf4
        • 2.Qe3#
      • 1...Kd4!
  • Keys
    • 1.Sd2!
      • threat
        • 2.Sf3#
      • 1...cxd2
        • 2.Re3#
      • 1...Sf4
        • 2.Qxh8#
      • 1...d4
        • 2.Qg5#
      • 1...Sd4
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR1(E)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(d);OGATE,S_FLIGHT::QAB1(E)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • S(A);
    • Threat
      • S(A)
    • Vars
      • P(a);OGATE,XS(A)::R(C)
      • S(e);OGATE,SBLOCK::QAB(E),XB(i)
      • P(c);P_SPINS(b),SBLOCK::QAR2(E)
      • S(b);P_SPINP(c)::S(A)
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