MESON Chess Problem Database

Problem Display
PID: 243514 (8/8/6Qp/3P1P1P/1P2k2P/1P2p2P/4N3/4K3 w - - 0 1)

Burda, Josef

Revista Romana de Sah, 1968

8/8/6Qp/3P1P1P/1P2k2P/1P2p2P/4N3/4K3

#2

10 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.f6#
    • 1...Kf3
      • 2.Qg4#
    • 1...Kxd5
      • 2.Qe6#
    • 1...Ke5
      • 2.Qe6#
  • Tries
    • 1.Kd1?
      • 1...Kd3
        • 2.f6#
      • 1...Kxd5
        • 2.Qe6#
      • 1...Ke5
        • 2.Qe6#
      • 1...Kf3!
    • 1.Kf1?
      • 1...Kf3
        • 2.Qg2#
        • 2.Qg4#
      • 1...Kxd5
        • 2.Qe6#
      • 1...Ke5
        • 2.Qe6#
      • 1...Kd3!
    • 1.Qa6?
      • 1...Kxd5
        • 2.Qe6#
      • 1...Ke5
        • 2.Qe6#
      • 1...Kxf5
        • 2.Qe6#
      • 1...Kf3!
    • 1.Qg8?
      • 1...Kf3
        • 2.Qg4#
      • 1...Ke5
        • 2.Qe6#
      • 1...Kxf5
        • 2.Qe6#
      • 1...Kd3!
    • 1.b5?
      • 1...Kd3
        • 2.f6#
      • 1...Kf3
        • 2.Qg4#
      • 1...Ke5
        • 2.Qe6#
      • 1...Kxd5!
    • 1.d6?
      • 1...Kd3
        • 2.f6#
      • 1...Kf3
        • 2.Qg4#
      • 1...Ke5
        • 2.Qe6#
      • 1...Kd5!
  • Keys
    • 1.Qc6!
      • 1...Kd3
        • 2.Qc4#
      • 1...Kf3
        • 2.d6#
      • 1...Ke5
        • 2.Qe6#
      • 1...Kxf5
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(b);S_FLIGHT::QAB(J)+P(H)
    • K(b);S_FLIGHT::QAB1(J)
    • K(b);S_FLIGHT,XP(G)::QAB1(J)
    • K(b);P-FLIGHT::QAR1(J)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAB(J)+P(H)
        • K(b);S_FLIGHT,XP(G)::QAB1(J)
        • K(b);P-FLIGHT::QAR1(J)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT,XP(G)::QAB1(J)
        • K(b);P-FLIGHT::QAR1(J)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(J);
      • Vars
        • K(b);S_FLIGHT,XP(G)::QAB1(J)
        • K(b);P-FLIGHT::QAR1(J)
        • K(b);S_FLIGHT,XP(H)::QAB1(J)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(J);
      • Vars
        • K(b);S_FLIGHT::QAB1(J)
        • K(b);P-FLIGHT::QAR1(J)
        • K(b);S_FLIGHT,XP(H)::QAB1(J)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(E);
      • Vars
        • K(b);S_FLIGHT::QAB(J)+P(H)
        • K(b);S_FLIGHT::QAB1(J)
        • K(b);P-FLIGHT::QAR1(J)
      • Refutation
        • K(b);S_FLIGHT,XP(G)
    • Try
      • P(G);
      • Vars
        • K(b);S_FLIGHT::QAB(J)+P(H)
        • K(b);S_FLIGHT::QAB1(J)
        • K(b);P-FLIGHT::QAR1(J)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(J);
    • Vars
      • K(b);S_FLIGHT::QAB1(J)
      • K(b);S_FLIGHT::QAB(J)+P(G)
      • K(b);P-FLIGHT::QAR1(J)
      • K(b);S_FLIGHT,XP(H)::QAB1(J)
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