MESON Chess Problem Database

Problem Display
PID: 234249 (2Bb4/6NN/p7/4p3/rR1q3k/5pp1/3Q2b1/2BK4 w - - 0 1)

Kipping, Cyril Stanley

The Chess Review, 1941

2Bb4/6NN/p7/4p3/rR1q3k/5pp1/3Q2b1/2BK4

#2

7 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxb4
      • 2.Qh6#
    • 1...Qc4
      • 2.Qh6#
      • 2.Qxd8#
    • 1...Qe4
      • 2.Qh6#
      • 2.Qxd8#
    • 1...Qf4
      • 2.Qxd8#
    • 1...Qg4
      • 2.Qh6#
  • Tries
    • 1.Rxd4+?
      • 1...exd4
        • 2.Qf4#
        • 2.Qh6#
      • 1...e4
        • 2.Qf4#
        • 2.Qh6#
      • 1...Rxd4!
    • 1.Qxd4+?
      • 1...e4
        • 2.Qxe4#
        • 2.Qxd8#
      • 1...exd4!
  • Keys
    • 1.Sf8!
      • threat
        • 2.Sg6#
      • 1...Qf4
        • 2.Qxd8#
      • 1...Qg4
        • 2.Qh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • Q(e);N_PINQ(C),N_SPINQ(e),XR(D)::QAR2(C)
    • Q(e);N_PINQ(C)::QAB(C),XB(i)
    • Q(e);N_PINQ(C)::QAR2(C)
  • Tries
    • Try
      • R(D);CHECK,N_SPINQ(C),XQ(e)
      • Refutation
        • R(d);P_PINQ(C),XR(D)
    • Try
      • Q(C);CHECK,N_SPINQ(C),XQ(e)
      • Refutation
        • P(g);P_SPINP(g),XQ(C)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • Q(e);N_PINQ(C)::QAB(C),XB(i)
      • Q(e);N_PINQ(C)::QAR2(C)
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