MESON Chess Problem Database

Problem Display
PID: 187715 (7q/1B6/1p2p3/2n1k2n/pp1R1RP1/1b4pP/3P1p2/K1Q5 w - - 0 1)

Charlick, Arthur Robert Baker

American Chess Bulletin, 1909

7q/1B6/1p2p3/2n1k2n/pp1R1RP1/1b4pP/3P1p2/K1Q5

#2

8 + 11

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sd3
      • 2.Qc7#
    • 1...Sd7
      • 2.Qc7#
  • Tries
    • 1.Rd8?
      • threat
        • 2.d4#
      • 1...Kxf4+
        • 2.d4#
      • 1...Sxf4
        • 2.Qb2#
      • 1...Sd7
        • 2.Qc7#
      • 1...Sd3
        • 2.Qc7#
      • 1...Qxd8!
    • 1.Qxc5+?
      • 1...Bd5
        • 2.Rde4#
        • 2.Qc7#
      • 1...bxc5!
  • Keys
    • 1.Rd7!
      • threat
        • 2.d4#
      • 1...Kxf4+
        • 2.d4#
      • 1...Sxd7
        • 2.Qc7#
      • 1...Sxf4
        • 2.Qb2#
      • 1...Sd3
        • 2.Qc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(f);OGATE::QAB(B)
  • Tries
    • Try
      • R(E);
      • Threat
        • P(C)
      • Vars
        • K(g);CHECK,S_FLIGHT,XR(F)::QAB(B)+P(C)
        • S(h);SBLOCK,XR(F)::QAB(B)
        • S(f);OGATE::QAB(B)
      • Refutation
        • Q(k);XR(E)
    • Try
      • Q(B);CHECK,XS(f)
      • Refutation
        • P(i);XQ(B)
  • Actual
    • R(E);
    • Threat
      • P(C)
    • Vars
      • K(g);CHECK,S_FLIGHT,XR(F)::QAB(B)+P(C)
      • S(f);OGATE,XR(E)::QAB(B)
      • S(h);SBLOCK,XR(F)::QAB(B)
      • S(f);OGATE::QAB(B)
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