MESON Chess Problem Database

Problem Display
PID: 244118 (2b5/4RrB1/q1ppN1Q1/3k4/5P2/1PrN3K/2R2pP1/5B2 w - - 0 1)

Benedek, Attila

Magyar Sakkelet, 1973

2b5/4RrB1/q1ppN1Q1/3k4/5P2/1PrN3K/2R2pP1/5B2

#2

11 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc2
      • 2.Sb4#
    • 1...Rc5
      • 2.Sb4#
    • 1...Rf5
      • 2.Sc7#
      • 2.Qxf5#
    • 1...Rxe7
      • 2.Qf5#
    • 1...Rxg7
      • 2.Qf5#
    • 1...Bxe6+
      • 2.Qxe6#
    • 1...Bb7
      • 2.Sc7#
  • Tries
    • 1.Qh5+?
      • 1...Rf5
        • 2.Sc7#
        • 2.Qf3#
        • 2.Qxf5#
      • 1...Ke4!
    • 1.Qg5+?
      • 1...Rf5
        • 2.Sc7#
        • 2.Qxf5#
      • 1...Ke4!
  • Keys
    • 1.Qf5+!
      • 1...Rxf5
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • R(b);N_PINS(E),P_PINS(H),XR(B)::S(E)
    • R(b);N_PINS(E),P_PINS(H)::S(E)
    • R(g);N_GUARD,XR(J)::QAR2(I)
    • R(g);N_GUARD,XB(K)::QAR2(I)
    • B(h);CHECK,OGATE,XS(H)::QAB1(I),XB(h)
    • B(h);::S(H)
  • Tries
    • Try
      • Q(I);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(I);CHECK
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(I);CHECK
    • Vars
      • R(g);XQ(I)::S(H)
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Developed and maintained by Brian Stephenson.
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