MESON Chess Problem Database

Problem Display
PID: 109817 (8/8/1n6/RPp5/2k5/5P2/P3K2p/3RQ3 w - - 0 1)

Valle, Giovanni Batista

L'arte di costruire, 1891

8/8/1n6/RPp5/2k5/5P2/P3K2p/3RQ3

#2

7 + 4

6490 yacpdb 2009
5454 Near Snap 2011

SOLUTION

  • SOUND
  • Tries
    • 1.Rd3?
      • threat
        • 2.Qc3#
        • 2.Qh4#
      • 1...h1Q
        • 2.Qc3#
      • 1...h1R
        • 2.Qc3#
      • 1...Sa4
        • 2.Qh4#
      • 1...Sd5!
  • Keys
    • 1.Kd2!
      • threat
        • 2.Qe4#
      • 1...Kb4
        • 2.Kd3#
      • 1...Kd4
        • 2.Qe4#
      • 1...Kd5
        • 2.Kc3#

Anticipated by 4576(1880)

This anticipates 95234(1898), 92667(1900), 2409(1904), 145656(1921), 208458(1950)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);::QAR1(B)
        • S(d);::QAR(B)
      • Refutation
        • S(d);
  • Actual
    • K(D);P-FLIGHT
    • Threat
      • QAR2(B)
    • Vars
      • K(b);P-FLIGHT::QAB(B)+K(D)
      • K(b);P-FLIGHT::QAR1(B)
      • K(b);S_FLIGHT::R(A)+K(D)
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