MESON Chess Problem Database

Problem Display
PID: 145498 (2n4B/r3p2p/R2q3k/6pB/3p4/3Q2N1/7K/8 w - - 0 1)

Shipov, V

Magyar Sakkvilag, 1932

2n4B/r3p2p/R2q3k/6pB/3p4/3Q2N1/7K/8

#2

6 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qe6
      • 2.Rxe6#
    • 1...g4
      • 2.Qd2#
  • Keys
    • 1.Qf3!
      • threat
        • 2.Qf8#
      • 1...g4
        • 2.Qf4#
      • 1...Qf6
        • 2.Sf5#
      • 1...e5
        • 2.Sf5#
      • 1...e6
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • Q(c);N_PINS(C),OGATE::R(E),XQ(c)
    • P(b);OGATEB::QAB(B)
  • Actual
    • Q(B);
    • Threat
      • QAB(B)
    • Vars
      • P(b);OGATEB::QAB(B)
      • Q(c);N_PINS(C)::S(C)
      • P(f);N_PINS(C)::S(C)
      • P(f);N_GUARD,N_SPINQ(c),S_CUTQ(c)::QAR2(B)
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