MESON Chess Problem Database

Problem Display
PID: 234242 (k2N4/p3R3/8/8/2N2B2/7p/p5q1/K2n3B w - - 0 1)

Kipping, Cyril Stanley

The Chess Review, 1938

k2N4/p3R3/8/8/2N2B2/7p/p5q1/K2n3B

#2

6 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qf3
      • 2.Bxf3#
    • 1...Qe4
      • 2.Bxe4#
    • 1...Qd5
      • 2.Bxd5#
    • 1...Qc6
      • 2.Bxc6#
    • 1...Qb7
      • 2.Bxb7#
    • 1...h2
      • 2.Bxg2#
    • 1...a5
      • 2.Sb6#
    • 1...a6
      • 2.Sb6#
  • Keys
    • 1.Rb7!
      • threat
        • 2.Rb8#
      • 1...Qb2+
        • 2.Rxb2#
      • 1...Qg7+
        • 2.Rxg7#
      • 1...Qxb7
        • 2.Bxb7#
      • 1...a5
        • 2.Sb6#
      • 1...a6
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • Q(c);OGATE::B(B),XQ(c)
    • P(d);N_GUARD::B(B),XQ(c)
    • P(e);N_GUARD::S(C)
  • Actual
    • R(E);N_PINQ(c)
    • Threat
      • R1(E)
    • Vars
      • Q(c);CHECK,OGATEB::B(B)+R(E),XQ(c)
      • Q(c);OGATE,P_SPINQ(c),XR(E)::B(B),XQ(c)
      • P(e);N_GUARD::S(C)
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