MESON Chess Problem Database

Problem Display
PID: 233012 (3N4/8/3k4/2RnR3/8/K5P1/7Q/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Kudesnik, 2009

3N4/8/3k4/2RnR3/8/K5P1/7Q/8

#2

6 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sb7+?
      • 1...Kd7
        • 2.Qh3#
      • 1...Kxe5!
    • 1.Sf7+?
      • 1...Kd7
        • 2.Qh3#
      • 1...Kxc5!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Qxd5#
      • 1...Kxc5
        • 2.Qb4#
      • 1...Kxe5
        • 2.Qf4#
      • 1...Kd7
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB(A)
      • Refutation
        • K(b);P_SPINS(a),S_FLIGHT,XR(E)
    • Try
      • S(F);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB(A)
      • Refutation
        • K(b);P_SPINS(a),S_FLIGHT,XR(D)
  • Actual
    • Q(A);P_PINS(a)
    • Threat
      • QAR1(A),XS(a)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XR(D)::QAB1(A)
      • K(b);OGATEB,S_FLIGHT,XR(E)::QAB1(A)
      • K(b);P-FLIGHT::QAR2(A),XS(a)
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