MESON Chess Problem Database

Problem Display
PID: 223217 (8/7Q/3p2N1/1n2b3/1K1k4/4pP2/8/8 w - - 0 1)

Strauss, M

Nashville Daily American, 1886

8/7Q/3p2N1/1n2b3/1K1k4/4pP2/8/8

#2

4 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Se7?
      • threat
        • 2.Qe4#
      • 1...d5
        • 2.Sc6#
      • 1...Sc3!
    • 1.Sf8?
      • threat
        • 2.Qe4#
      • 1...Kd5
        • 2.Qe4#
      • 1...d5
        • 2.Se6#
      • 1...Sc3!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Qd3#
        • 2.Qe4#
      • 1...Bxf4
        • 2.Qe4#
      • 1...Bf6
        • 2.Qe4#
      • 1...Bg7
        • 2.Qe4#
        • 2.Qxg7#
      • 1...Bh8
        • 2.Qe4#
        • 2.Qxh8#
      • 1...Sc3
        • 2.Qd3#
        • 2.Qa7#
      • 1...d5
        • 2.Se2#
        • 2.Se6#
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • QAR1(D)
      • Vars
        • P(e);SBLOCK::S(C)
      • Refutation
        • S(c);
    • Try
      • S(C);
      • Threat
        • QAR1(D)
      • Vars
        • K(b);P-FLIGHT::QAB1(D)
        • P(e);SBLOCK::S(C)
      • Refutation
        • S(c);
  • Actual
    • S(C);
    • Threat
      • DUALS(2)
    • Vars
      • B(d);XS(C)::QAR1(D)
      • B(d);::QAR1(D)
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