MESON Chess Problem Database

Problem Display
PID: 184374 (8/8/2N5/NpPk4/3p2R1/8/6K1/3Q4 w - - 0 1)

Ivankovich, Egor

Kudesnik, 2018

8/8/2N5/NpPk4/3p2R1/8/6K1/3Q4

#2

6 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc5
      • 2.Qxd4#
  • Tries
    • 1.Rg5+?
      • 1...Ke4
        • 2.Qf3#
        • 2.Qxd4#
      • 1...Ke6!
    • 1.Rg6?
      • threat
        • 2.Qxd4#
      • 1...Ke4
        • 2.Qf3#
      • 1...Kxc5
        • 2.Qxd4#
      • 1...d3!
    • 1.Qd3?
      • threat
        • 2.Qf5#
      • 1...Kxc5
        • 2.Qxd4#
      • 1...Ke6!
  • Keys
    • 1.Re4!
      • threat
        • 2.Re5#
        • 2.Qxd4#
      • 1...Kxe4
        • 2.Qf3#
      • 1...Kxc5
        • 2.Qxd4#
      • 1...d3
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINP(a),P-FLIGHT,XP(E)::QAB1(A),XP(a)
  • Tries
    • Try
      • R(C);CHECK
      • Refutation
        • K(c);N_SPINP(a),S_FLIGHT
    • Try
      • R(C);
      • Threat
        • QAR1(A),XP(a)
      • Vars
        • K(c);N_SPINP(a),S_FLIGHT::QAB1(A)
        • K(c);N_SPINP(a),P-FLIGHT,XP(E)::QAB1(A),XP(a)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • K(c);N_SPINP(a),P-FLIGHT,XP(E)::QAB1(A),XP(a)
      • Refutation
        • K(c);N_SPINP(a),S_FLIGHT
  • Actual
    • R(C);
    • Threat
      • DUALS(2)
    • Vars
      • K(c);N_SPINP(a),OGATEB,S_FLIGHT,XR(C)::QAB1(A)
      • K(c);N_SPINP(a),P-FLIGHT,XP(E)::QAB1(A),XP(a)
      • P(a);::R1(C)
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