MESON Chess Problem Database

Problem Display
PID: 245508 (4B3/8/1K6/3kp3/2N5/8/Q7/2N5 w - - 0 1)

Shumarin, Vladimir Pavlovich

Kudesnik, 2002

4B3/8/1K6/3kp3/2N5/8/Q7/2N5

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sd6+?
      • 1...Kd4
        • 2.Qd2#
      • 1...Kxd6!
    • 1.Qb2?
      • 1...Kxc4
        • 2.Bf7#
      • 1...Ke6
        • 2.Qxe5#
      • 1...e4
        • 2.Bf7#
      • 1...Ke4!
    • 1.Qe2?
      • 1...Kd4
        • 2.Qd3#
      • 1...Ke6
        • 2.Qxe5#
      • 1...e4!
  • Keys
    • 1.Qf2!
      • 1...Kxc4
        • 2.Qc5#
      • 1...Ke4
        • 2.Bc6#
      • 1...Ke6
        • 2.Qf7#
      • 1...e4
        • 2.Bf7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
      • Refutation
        • K(a);P-FLIGHT,XS(C)
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT,XS(C)::B(E)
        • K(a);S_FLIGHT::QAR1(B),XP(b)
        • P(b);SBLOCK::B(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
        • K(a);P_SPINP(b),S_FLIGHT::QAR1(B),XP(b)
      • Refutation
        • P(b);
  • Actual
    • Q(B);
    • Vars
      • K(a);S_FLIGHT,XS(C)::QAR1(B)
      • K(a);S_FLIGHT::B(E)
      • K(a);S_FLIGHT::QAB1(B)
      • P(b);SBLOCK::B(E)
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