MESON Chess Problem Database

Problem Display
PID: 168154 (8/3q4/pnp5/2k5/1R3P2/B2p2N1/6Qp/6bK w - - 0 1)

Sverdlov, J

La Settimana Enigmistica, 1933

(First published on Fri Jan 6 1933)

8/3q4/pnp5/2k5/1R3P2/B2p2N1/6Qp/6bK

#2

6 + 8

14868 Pirnie Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sd5
      • 2.Se4#
  • Tries
    • 1.Rb3+?
      • 1...Kd4
        • 2.Qe4#
      • 1...Kc4!
  • Keys
    • 1.Qb2!
      • threat
        • 2.Rd4#
      • 1...Qd5+
        • 2.Re4#
      • 1...Kd5
        • 2.Qe5#
      • 1...Kd6
        • 2.Qe5#
      • 1...Qd4
        • 2.Rxd4#
      • 1...Bd4
        • 2.Rxd4#
      • 1...Sc4
        • 2.Rb5#
      • 1...Sd5
        • 2.Se4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(f);SBLOCK::S(D)
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • K(d);S_FLIGHT::QAR1(B)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • Q(B);
    • Threat
      • B(C)+R(E)
    • Vars
      • Q(h);CHECK,SBLOCK::B(C)+R(E)
      • K(d);P-FLIGHT::QAR1(B)
      • K(d);S_FLIGHT::QAB1(B)
      • Q(h);::B(C)+R(E),XQ(h)
      • B(a);::B(C)+R(E),XB(a)
      • S(f);SBLOCK::B(C)+R(E),DCHECK
      • S(f);SBLOCK::S(D)
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