MESON Chess Problem Database

Problem Display
PID: 11124 (8/8/8/3prp2/4k3/QR6/8/6K1 w - - 0 1)

Oreshin, Aleksandr G

2nd Place, Shakhmaty v SSSR, 1936

8/8/8/3prp2/4k3/QR6/8/6K1

#2

3 + 4

3296 Shakhmatny zadachi miniaturi 1987
3813 300 Sachmatu Uzdaviniu 1991

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qb4#
  • Tries
    • 1.Re3+?
      • 1...Kd4
        • 2.Qc3#
      • 1...Kf4!
    • 1.Rf3?
      • threat
        • 2.Qd3#
        • 2.Qe3#
      • 1...Kd4
        • 2.Qb4#
      • 1...Re6
        • 2.Qe3#
      • 1...Re7
        • 2.Qe3#
      • 1...Re8
        • 2.Qe3#
      • 1...f4
        • 2.Qd3#
      • 1...d4!
    • 1.Rh3?
      • threat
        • 2.Qe3#
      • 1...Kd4
        • 2.Qb4#
      • 1...d4
        • 2.Qf3#
      • 1...f4
        • 2.Qd3#
      • 1...Kf4!
  • Keys
    • 1.Rg3!
      • threat
        • 2.Qe3#
      • 1...Kd4
        • 2.Qb4#
      • 1...Kf4
        • 2.Qf3#
      • 1...d4
        • 2.Qf3#
      • 1...f4
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR2(B)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(C);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
        • R(c);::QAR1(B)
        • P(d);::QAB1(B)
      • Refutation
        • P(b);
    • Try
      • R(C);
      • Threat
        • QAR1(B)
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
        • P(b);SBLOCK::QAB1(B)
        • P(d);SBLOCK::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(C);
    • Threat
      • QAR1(B)
    • Vars
      • K(a);P-FLIGHT::QAR2(B)
      • K(a);P-FLIGHT::QAR1(B)
      • P(b);SBLOCK::QAB1(B)
      • P(d);SBLOCK::QAB1(B)
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