MESON Chess Problem Database

Problem Display
PID: 245472 (8/8/R6b/3k4/Q7/4nK2/2P5/8 w - - 0 1)

Shumarin, Vladimir Pavlovich

Kudesnik, 2000

8/8/R6b/3k4/Q7/4nK2/2P5/8

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qe4#
  • Tries
    • 1.Rc6?
      • threat
        • 2.Qe4#
      • 1...Ke5
        • 2.Qe4#
      • 1...Sc4!
    • 1.Qc6+?
      • 1...Ke5
        • 2.Qe4#
      • 1...Kd4!
  • Keys
    • 1.c3!
      • threat
        • 2.Qb5#
        • 2.Qd4#
      • 1...Kc5
        • 2.Qc6#
      • 1...Ke5
        • 2.Qe4#
      • 1...Bg7
        • 2.Qb5#
      • 1...Bf8
        • 2.Qd4#
      • 1...Sc2
        • 2.Qb5#
      • 1...Sc4
        • 2.Qb5#
      • 1...Sf5
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAR1(C)
  • Tries
    • Try
      • R(D);
      • Threat
        • QAB1(C)
      • Vars
        • K(b);P-FLIGHT::QAR1(C)
      • Refutation
        • S(a);
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);OGATE,P-FLIGHT::QAR1(C)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • P(A);
    • Threat
      • DUALS(2)
    • Vars
      • K(b);P-FLIGHT::QAR1(C)
      • B(c);::QAR2(C)
      • B(c);::QAR1(C)
      • S(a);::QAR2(C)
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