MESON Chess Problem Database

Problem Display
PID: 163995 (4R3/p1K1B1pN/2p3p1/r3n2r/3Pk3/4P2p/4Q3/4N3 w - - 0 1)

Grinblat, Arieh

Springaren, 2014

4R3/p1K1B1pN/2p3p1/r3n2r/3Pk3/4P2p/4Q3/4N3

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sd3
      • 2.Qf3#
    • 1...Sf3
      • 2.Qxf3#
    • 1...Sc4
      • 2.Qf3#
    • 1...Sg4
      • 2.Qf3#
    • 1...Sd7
      • 2.Qf3#
    • 1...Sf7
      • 2.Qf3#
  • Tries
    • 1.Bc5?
      • threat
        • 2.Qf3#
      • 1...Kd5
        • 2.e4#
      • 1...Kf5
        • 2.Rxe5#
      • 1...Rf5!
  • Keys
    • 1.Bg5!
      • threat
        • 2.Qf3#
      • 1...Kd5
        • 2.Rxe5#
      • 1...Kf5
        • 2.e4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • S(d);N_GUARD::QAB1(B)
    • S(d);N_GUARD::QAB1(B),XS(d)
  • Tries
    • Try
      • B(F);P_PINS(d)
      • Threat
        • QAB1(B)
      • Vars
        • K(b);N_SPINS(d),OGATE,S_FLIGHT::P(C)
        • K(b);N_SPINS(d),S_FLIGHT::R1(H),XS(d)
      • Refutation
        • R(e);
  • Actual
    • B(F);P_PINS(d)
    • Threat
      • QAB1(B)
    • Vars
      • K(b);N_SPINS(d),S_FLIGHT::R1(H),XS(d)
      • K(b);N_SPINS(d),OGATE,S_FLIGHT::P(C)
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