MESON Chess Problem Database

Problem Display
PID: 184849 (5n2/8/K1p2p2/p1Bk1p2/8/1R1N4/4Q3/8 w - - 0 1)

Jewetsky, Feodor Orestovich

125 Shakhmaty Zadachi (Eventski), 1908

5n2/8/K1p2p2/p1Bk1p2/8/1R1N4/4Q3/8

#2

5 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Rc3?
      • threat
        • 2.Sf4#
      • 1...Se6
        • 2.Qf3#
        • 2.Qg2#
      • 1...f4
        • 2.Sxf4#
      • 1...Sg6!
    • 1.Rb4?
      • threat
        • 2.Rd4#
        • 2.Qa2#
      • 1...Se6
        • 2.Qf3#
        • 2.Qa2#
        • 2.Qg2#
      • 1...axb4!
    • 1.Qe5+?
      • 1...Kc4
        • 2.Rc3#
      • 1...fxe5!
  • Keys
    • 1.Qa2!
      • threat
        • 2.Rb4#
      • 1...Kc4
        • 2.Ra3#
      • 1...Ke4
        • 2.Qg2#
      • 1...Ke6
        • 2.Rb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);
      • Threat
        • S(C)
      • Vars
        • P(c);::S(C),XP(c)
      • Refutation
        • S(f);
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Refutation
        • P(a);XR(B)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::R1(B)
      • Refutation
        • P(e);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAB(A)+R(B)
    • Vars
      • K(b);S_FLIGHT::QAB(A)+R(B)
      • K(b);S_FLIGHT::QAB(A)
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