MESON Chess Problem Database

Problem Display
PID: 165373 (Q7/8/K7/8/8/6p1/2p3R1/3k4 w - - 0 1)

Fomichev, Evgeny Vasilevich

Rochade Europa, 1999

Q7/8/K7/8/8/6p1/2p3R1/3k4

#2

3 + 3

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Qf3+?
      • 1...Ke1
        • 2.Qe2#
      • 1...Kc1!
    • 1.Qe4?
      • 1...Kc1
        • 2.Qxc2#
      • 1...c1Q
        • 2.Qe2#
      • 1...c1B
        • 2.Qe2#
      • 1...c1R
        • 2.Qe2#
      • 1...c1S!
    • 1.Qa7?
      • threat
        • 2.Qg1#
      • 1...Ke1
        • 2.Qg1#
      • 1...Kc1!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qh1#
      • 1...Kc1
        • 2.Qa1#
      • 1...Ke1
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);P-FLIGHT::QAR1(C),XP(b)
        • P(b);SBLOCK::QAB1(C)
      • Refutation
        • P(b);
    • Try
      • Q(C);
      • Threat
        • QAR(C)
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAR(C)
    • Vars
      • K(a);P-FLIGHT::QAR2(C)
      • K(a);P-FLIGHT::QAR(C)
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