MESON Chess Problem Database

Problem Display
PID: 287454 (8/8/6K1/2pkN3/8/1R4Q1/8/8 w - - 0 1)

Pankratiev, Aleksandr Nikolaevich

Problem Paradise, 2020

8/8/6K1/2pkN3/8/1R4Q1/8/8

#2

4 + 2

15601 Albrecht-Leiss-Degener Collection 2026
5454 Near Snap 2026

SOLUTION

  • SOUND
  • Tries
    • 1.Sf7?
      • 1...Kc4
        • 2.Qd3#
      • 1...Kd4
        • 2.Qd3#
      • 1...Ke4
        • 2.Qe5#
      • 1...Kc6
        • 2.Qd6#
      • 1...Ke6
        • 2.Qd6#
      • 1...c4!
    • 1.Rd3+?
      • 1...Ke4
        • 2.Qe3#
      • 1...Ke6!
  • Keys
    • 1.Sc4!
      • 1...Kxc4
        • 2.Qd3#
      • 1...Kd4
        • 2.Qd3#
      • 1...Ke4
        • 2.Qe5#
      • 1...Kc6
        • 2.Qd6#
      • 1...Ke6
        • 2.Qd6#

Anticipated by 283866(1894)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • K(b);N_GUARD,S_FLIGHT::QAB1(B)
        • K(b);N_GUARD,P-FLIGHT::QAR1(B)
        • K(b);N_GUARD,S_FLIGHT::QAR1(B)
      • Refutation
        • P(a);
    • Try
      • R(A);CHECK
      • Vars
        • K(b);N_GUARD,S_FLIGHT::QAR1(B)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(C);
    • Vars
      • K(b);N_GUARD,S_FLIGHT,XS(C)::QAB1(B)
      • K(b);N_GUARD,P-FLIGHT::QAR1(B)
      • K(b);N_GUARD,S_FLIGHT::QAR1(B)
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