MESON Chess Problem Database

Problem Display
PID: 268535 (n1R1B3/4p3/1p1kr3/3b2p1/4nbN1/4Q3/5P1B/R3K3 w Q - 0 1)

Chicco, Adriano

HM., Die Schwalbe TT, 1935

n1R1B3/4p3/1p1kr3/3b2p1/4nbN1/4Q3/5P1B/R3K3

#2

8 + 9

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Sc7
      • 2.Rd8#
  • Tries
    • 1.Rd1?
      • threat
        • 2.Rc6#
      • 1...Sc7
        • 2.Rd8#
        • 2.Qxb6#
      • 1...Sd2!
    • 1.Qxf4+?
      • 1...Re5
        • 2.Qxe5#
      • 1...gxf4!
    • 1.Qxb6+?
      • 1...Bc6
        • 2.Rd8#
        • 2.Qxc6#
      • 1...Sxb6!
  • Keys
    • 1.0-0-0!
      • threat
        • 2.Rc6#
      • 1...Sd2
        • 2.Qa3#
      • 1...Sc7
        • 2.Rd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(i);SBLOCK::R(G)
  • Tries
    • Try
      • R(A);
      • Threat
        • R1(G)
      • Refutation
        • S(a);P_PINQ(E)
    • Try
      • Q(E);CHECK,XB(b)
      • Vars
        • R(g);N_GUARD,P_SPINR(g)::QAB1(E),XR(g)
      • Refutation
        • P(d);P_SPINP(d),XQ(E)
    • Try
      • Q(E);CHECK,XP(e)
      • Refutation
        • S(i);XQ(E)
  • Actual
    • K(B);0-0-0,P_SPINQ(E)
    • Threat
      • R1(G)
    • Vars
      • S(a);N_PINQ(E)::QAB(E)
      • S(i);SBLOCK::R(G)
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