MESON Chess Problem Database

Problem Display
PID: 129857 (8/Q3p3/b1P1k3/1pP4N/1K6/5Np1/2B5/1n4r1 w - - 0 1)

Drnek, Josef

Nove parizske mody, 1900

8/Q3p3/b1P1k3/1pP4N/1K6/5Np1/2B5/1n4r1

#2

7 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qd7#
    • 1...Bb7
      • 2.Qa2#
    • 1...Bc8
      • 2.Qa2#
  • Tries
    • 1.Bg6?
      • threat
        • 2.Qd7#
      • 1...Kd5
        • 2.Qd7#
      • 1...Bb7
        • 2.Qa2#
      • 1...Bc8
        • 2.Qa2#
      • 1...Rd1!
    • 1.Qxe7+?
      • 1...Kd5
        • 2.Be4#
        • 2.Qd6#
        • 2.Qe4#
        • 2.Qd7#
      • 1...Kxe7!
  • Keys
    • 1.Qa8!
      • threat
        • 2.Qg8#
      • 1...Kd5
        • 2.Sf4#
      • 1...Kf7
        • 2.Sg5#
      • 1...Bc8
        • 2.Qa2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(f);S_FLIGHT::QAR2(G)
    • B(e);OGATE::QAB(G)
  • Tries
    • Try
      • B(A);
      • Threat
        • QAB1(G)
      • Vars
        • K(f);S_FLIGHT::QAR2(G)
        • B(e);OGATE::QAB(G)
      • Refutation
        • R(b);
    • Try
      • Q(G);CHECK,XP(g)
      • Refutation
        • K(f);P-FLIGHT,XQ(G)
  • Actual
    • Q(G);
    • Threat
      • QAB(G)
    • Vars
      • K(f);S_FLIGHT::S(E)
      • K(f);S_FLIGHT::S(B)
      • B(e);OGATE::QAB(G)
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