MESON Chess Problem Database

Problem Display
PID: 103326 (1b6/8/K7/2p3R1/1pB2p2/1P3k2/2PP3n/Q3B3 w - - 0 1)

Markov, Evgeny Viktorovich

Kudesnik, 1993

1b6/8/K7/2p3R1/1pB2p2/1P3k2/2PP3n/Q3B3

#2

8 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Bd5#
  • Tries
    • 1.Kb5?
      • threat
        • 2.Qa8#
      • 1...Ke4
        • 2.Bd5#
      • 1...Ba7!
    • 1.Bh4?
      • threat
        • 2.Qh1#
      • 1...Ke4
        • 2.Bd5#
      • 1...Sf1!
    • 1.Qc3+?
      • 1...Ke4
        • 2.Bd5#
        • 2.Qd3#
      • 1...bxc3!
    • 1.Qd4?
      • threat
        • 2.Qd3#
        • 2.Qd5#
      • 1...Sg4
        • 2.Qd5#
      • 1...Sf1
        • 2.Qd5#
      • 1...cxd4!
    • 1.Qe5?
      • threat
        • 2.Be2#
        • 2.Bd5#
        • 2.Qe2#
        • 2.Qd5#
      • 1...Sg4
        • 2.Bd5#
        • 2.Qe2#
        • 2.Qd5#
      • 1...Bxe5!
    • 1.Qf6?
      • threat
        • 2.Qc6#
      • 1...Ke4
        • 2.Bd5#
      • 1...Bd6!
    • 1.Qg7?
      • threat
        • 2.Qb7#
      • 1...Ke4
        • 2.Bd5#
      • 1...Bc7!
  • Keys
    • 1.Qh8!
      • 1...Ke4
        • 2.Bd5#
      • 1...Sg4
        • 2.Qh1#
      • 1...Be5
        • 2.Qa8#
      • 1...Bd6
        • 2.Qa8#
      • 1...Ba7
        • 2.Qa8#
      • 1...Bc7
        • 2.Qa8#
      • 1...Sf1
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::B(F)
  • Tries
    • Try
      • K(H);S_FLIGHT
      • Threat
        • QAB(A)
      • Vars
        • K(b);S_FLIGHT::B(F)
      • Refutation
        • B(f);
    • Try
      • B(B);
      • Threat
        • QAB(A)
      • Vars
        • K(b);S_FLIGHT::B(F)
      • Refutation
        • S(a);
    • Try
      • Q(A);CHECK
      • Refutation
        • P(c);XQ(A)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::QAB(A)
      • Refutation
        • P(e);XQ(A)
    • Try
      • Q(A);
      • Threat
        • DUALS(4)
      • Refutation
        • B(f);XQ(A)
    • Try
      • Q(A);P_PINP(d)
      • Threat
        • QAB(A)
      • Vars
        • K(b);N_SPINP(d),S_FLIGHT::B(F)
      • Refutation
        • B(f);
    • Try
      • Q(A);
      • Threat
        • QAB(A)
      • Vars
        • K(b);S_FLIGHT::B(F)
      • Refutation
        • B(f);
  • Actual
    • Q(A);
    • Vars
      • K(b);S_FLIGHT::B(F)
      • S(a);OGATE::QAB(A)
      • B(f);OGATE::QAB(A)
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