MESON Chess Problem Database

Problem Display
PID: 264248 (6R1/7k/2p4N/2p3P1/2K2pp1/b7/5Prn/6RQ w - - 0 1)

Pituk, Alexander

Prace, 1983

6R1/7k/2p4N/2p3P1/2K2pp1/b7/5Prn/6RQ

#2

7 + 8

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg1
      • 2.Qe4#
    • 1...Rxf2
      • 2.Qe4#
    • 1...Rg3
      • 2.Qe4#
    • 1...Sf1
      • 2.g6#
    • 1...Sf3
      • 2.g6#
  • Tries
    • 1.Rxg2?
      • threat
        • 2.Qb1#
      • 1...Sf1
        • 2.g6#
      • 1...Bc1!
  • Keys
    • 1.Ra1!
      • threat
        • 2.Qb1#
      • 1...Rxf2
        • 2.Qe4#
      • 1...Rg1
        • 2.Qe4#
      • 1...Rg3
        • 2.Qe4#
      • 1...Bc1
        • 2.Ra7#
      • 1...Sf1
        • 2.g6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(a);OGATE,XR(A)::QAB(B)
    • R(a);OGATE,XP(C)::QAB(B)
    • R(a);OGATE::QAB(B)
    • S(b);::P(E)
  • Tries
    • Try
      • R(A);XR(a)
      • Threat
        • QAB(B)
      • Vars
        • S(b);::P(E)
      • Refutation
        • B(c);
  • Actual
    • R(A);
    • Threat
      • QAB(B)
    • Vars
      • R(a);OGATE,XP(C)::QAB(B)
      • R(a);OGATE::QAB(B)
      • B(c);OGATE::R(A)
      • S(b);::P(E)
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