MESON Chess Problem Database

Problem Display
PID: 255332 (8/8/B7/Q7/1K6/8/3R4/1b1rk3 w - - 0 1)

Gladtsinov, Vladimir

6th Comm., Astafyeva-30 JT (Lightweights) (Kudesnik), 2021

8/8/B7/Q7/1K6/8/3R4/1b1rk3

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Qb6?
      • threat
        • 2.Qf2#
        • 2.Qe3#
      • 1...Rxd2
        • 2.Qg1#
      • 1...Bd3
        • 2.Qf2#
      • 1...Kxd2!
    • 1.Qe5+?
      • 1...Kxd2
        • 2.Qc3#
      • 1...Be4!
    • 1.Qg5?
      • threat
        • 2.Qe3#
      • 1...Rxd2
        • 2.Qg1#
      • 1...Bd3!
  • Keys
    • 1.Qc5!
      • threat
        • 2.Qf2#
        • 2.Qe3#
      • 1...Kxd2
        • 2.Qc3#
      • 1...Rxd2
        • 2.Qg1#
      • 1...Bd3
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);SBLOCK,XR(A)::QAR2(C)
        • B(a);::QAB1(C)
      • Refutation
        • K(c);S_FLIGHT,XR(A)
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);OGATEB,S_FLIGHT,XR(A)::QAB1(C)
      • Refutation
        • B(a);P_SPINB(a)
    • Try
      • Q(C);
      • Threat
        • QAR2(C)
      • Vars
        • R(b);SBLOCK,XR(A)::QAR2(C)
      • Refutation
        • B(a);
  • Actual
    • Q(C);
    • Threat
      • DUALS(2)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XR(A)::QAB1(C)
      • R(b);SBLOCK,XR(A)::QAR2(C)
      • B(a);::QAB1(C)
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