MESON Chess Problem Database

Problem Display
PID: 182223 (8/2p5/Q2N1p2/4kPp1/1P2b3/4K3/8/8 w - - 0 1)

Dobias, Josef

Vynalezy a pokroky, 1906

8/2p5/Q2N1p2/4kPp1/1P2b3/4K3/8/8

#2

5 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sc4+?
      • 1...Kd5
        • 2.Qe6#
      • 1...Kxf5!
    • 1.Sf7+?
      • 1...Kd5
        • 2.Qe6#
      • 1...Kxf5!
    • 1.Qc4?
      • threat
        • 2.Qe6#
        • 2.Qd4#
      • 1...Kxd6
        • 2.Qe6#
      • 1...Bxf5
        • 2.Sf7#
      • 1...cxd6
        • 2.Qe6#
        • 2.Qxe4#
      • 1...c5
        • 2.Qe6#
      • 1...Bd5!
  • Keys
    • 1.Qa2!
      • threat
        • 2.Qe6#
      • 1...Kxd6
        • 2.Qe6#
      • 1...Bxf5
        • 2.Sf7#
      • 1...Bd5
        • 2.Qh2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(D)
      • Refutation
        • K(b);P-FLIGHT,XP(C)
    • Try
      • S(E);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(D)
      • Refutation
        • K(b);P-FLIGHT,XP(C)
    • Try
      • Q(D);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);S_FLIGHT,XS(E)::QAR1(D)
        • B(a);SBLOCK,XP(C)::S(E)
        • P(e);::QAR1(D)
      • Refutation
        • B(a);
  • Actual
    • Q(D);
    • Threat
      • QAR1(D)
    • Vars
      • K(b);S_FLIGHT,XS(E)::QAR1(D)
      • B(a);SBLOCK,XP(C)::S(E)
      • B(a);SBLOCK::QAB(D)
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