MESON Chess Problem Database

Problem Display
PID: 99346 (6Qr/3p3p/2p5/8/2NNkqB1/2P3P1/K1P2p2/3R4 w - - 0 1)

Pasztor, Jozsef

Magyar Sakkelet, 1980

6Qr/3p3p/2p5/8/2NNkqB1/2P3P1/K1P2p2/3R4

#2

9 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qc1
      • 2.Bf3#
      • 2.Bf5#
    • 1...Qd2
      • 2.Bf3#
      • 2.Bf5#
    • 1...Qe3
      • 2.Bf5#
    • 1...Qe5
      • 2.Bf3#
    • 1...Qg5
      • 2.Bf3#
    • 1...Qd6
      • 2.Bf3#
      • 2.Bf5#
    • 1...Qh6
      • 2.Bf3#
      • 2.Bf5#
    • 1...Qc7
      • 2.Bf3#
      • 2.Bf5#
    • 1...Qb8
      • 2.Bf3#
      • 2.Bf5#
    • 1...Qf3
      • 2.Bxf3#
    • 1...Qf5
      • 2.Bxf5#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Rd4#
      • 1...Qxg4
        • 2.Qxg4#
      • 1...Qe3
        • 2.Sfd6#
      • 1...Qe5
        • 2.Sd2#
      • 1...Qd6
        • 2.Sfxd6#
      • 1...c5
        • 2.Qd5#
      • 1...Qd2!
    • 1.Qe6+?
      • 1...Qe5
        • 2.Bf3#
        • 2.Bf5#
        • 2.Qxe5#
      • 1...dxe6!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Rd4#
      • 1...Qxg4
        • 2.Qxg4#
      • 1...Qe3
        • 2.Sd6#
      • 1...Qd2
        • 2.Sfxd2#
      • 1...Qe5
        • 2.Sfd2#
      • 1...Qd6
        • 2.Sg5#
      • 1...Qf6
        • 2.Sfd2#
      • 1...c5
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • Q(c);N_GUARD::B(H)
    • Q(c);N_GUARD::B(H),XQ(c)
  • Tries
    • Try
      • S(G);
      • Threat
        • R1(A)
      • Vars
        • Q(c);OGATE,XB(H)::QAR2(I),XQ(c)
        • Q(c);N_GUARD::S(G)
        • Q(c);N_GUARD,SBLOCK::S(F)
        • Q(c);N_GUARD::S(G),XQ(c)
        • P(d);N_GUARD::QAB1(I)
      • Refutation
        • Q(c);P_PINP(C)
    • Try
      • Q(I);CHECK
      • Refutation
        • P(e);XQ(I)
  • Actual
    • S(G);
    • Threat
      • R1(A)
    • Vars
      • Q(c);OGATE,XB(H)::QAR2(I),XQ(c)
      • Q(c);N_GUARD,SBLOCK::S(F)
      • Q(c);N_GUARD,P_PINP(C)::S(G),XQ(c)
      • Q(c);N_GUARD::S(G)
      • P(d);N_GUARD::QAB1(I)
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