MESON Chess Problem Database

Problem Display
PID: 193515 (Q7/2R5/5K1p/1p3p1r/3k4/1r6/3P1P2/1Rn1n1N1 w - - 0 1)

Guidelli, Giorgio

Chess Amateur (The), 1915

Q7/2R5/5K1p/1p3p1r/3k4/1r6/3P1P2/1Rn1n1N1

#2

7 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qd5#
    • 1...Rd3
      • 2.Rb4#
    • 1...Scd3
      • 2.Se2#
    • 1...Sed3
      • 2.Sf3#
  • Tries
    • 1.Qc6?
      • threat
        • 2.Rd7#
      • 1...Kd3
        • 2.Rd7#
        • 2.Qd5#
      • 1...f4!
  • Keys
    • 1.d3!
      • threat
        • 2.Qd8#
      • 1...Kxd3
        • 2.Qd5#
      • 1...Rxd3
        • 2.Rb4#
      • 1...Scxd3
        • 2.Se2#
      • 1...Sexd3
        • 2.Sf3#
      • 1...f4
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(d);P-FLIGHT::QAR2(G)
    • R(c);OGATE,SBLOCK::R(A)
    • S(a);N_GUARD,SBLOCK::S(B)
    • S(b);N_GUARD,SBLOCK,S_CUTR(c)::S(B)
  • Tries
    • Try
      • Q(G);
      • Threat
        • R(F)
      • Refutation
        • P(f);
  • Actual
    • P(C);
    • Threat
      • QAR(G)
    • Vars
      • K(d);P-FLIGHT,XP(C)::QAR2(G)
      • R(c);OGATE,SBLOCK,XP(C)::R(A)
      • S(a);N_GUARD,SBLOCK,XP(C)::S(B)
      • S(b);N_GUARD,SBLOCK,XP(C)::S(B)
      • P(f);N_GUARD::QAR1(G)
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