MESON Chess Problem Database

Problem Display
PID: 139650 (3Q4/rk2Np2/b2P4/p1b5/1n1p4/KnNr1R2/1Rpp2B1/8 w - - 0 1)

Westbury, Eric Ernest

The Problemist, 1937

3Q4/rk2Np2/b2P4/p1b5/1n1p4/KnNr1R2/1Rpp2B1/8

#2

8 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Ra8
      • 2.Qc7#
    • 1...Bb6
      • 2.Qc8#
    • 1...Sa1
      • 2.Rxd3#
      • 2.Re3#
    • 1...Sc1
      • 2.Rxd3#
      • 2.Re3#
  • Keys
    • 1.Sa4!
      • threat
        • 2.Qc8#
      • 1...Sa1+
        • 2.Rxd3#
      • 1...Sc1+
        • 2.Rxd3#
      • 1...Sa2+
        • 2.Sxc5#
      • 1...Sd5+
        • 2.Sxc5#
      • 1...Sc6+
        • 2.Sxc5#
      • 1...Ra8
        • 2.Qc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • R(j);SBLOCK::QAR1(H)
    • B(h);SBLOCK::QAB1(H)
  • Actual
    • S(D);
    • Threat
      • QAB1(H)
    • Vars
      • S(c);CHECK,P_SPINS(e)::B(B)+R(E),XR(d)
      • S(e);CHECK,P_SPINS(c)::S(D),XB(h)
      • R(j);SBLOCK::QAR1(H)
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