MESON Chess Problem Database

Problem Display
PID: 121073 (1K6/6B1/1Np2N2/1b2R1p1/1p1k4/2q5/3pr1PQ/1B6 w - - 0 1)

Kisis, Imants J

Riga Central CC, 1949

1K6/6B1/1Np2N2/1b2R1p1/1p1k4/2q5/3pr1PQ/1B6

#2

8 + 8

113 Shakhmaty v SSSR 1949
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Re4+?
      • 1...Kc5
        • 2.Sbd7#
        • 2.Sfd7#
      • 1...Rxe4!
    • 1.Rd5+?
      • 1...Ke3
        • 2.Sg4#
        • 2.Qg3#
      • 1...cxd5!
    • 1.Qf4+?
      • 1...Re4
        • 2.Qxe4#
      • 1...gxf4!
  • Keys
    • 1.Re3!
      • threat
        • 2.Qe5#
      • 1...Kxe3
        • 2.Sg4#
      • 1...Kc5
        • 2.Sfd7#
      • 1...Qxe3
        • 2.Se4#
      • 1...Rxe3
        • 2.Se4#
        • 2.Qd6#
      • 1...Qc5
        • 2.Sfd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);CHECK
      • Refutation
        • R(b);XR(D)
    • Try
      • R(D);CHECK
      • Refutation
        • P(h);XR(D)
    • Try
      • Q(C);CHECK
      • Vars
        • R(b);N_GUARD,P_SPINR(b)::QAR1(C),XR(b)
      • Refutation
        • P(g);XQ(C)
  • Actual
    • R(D);
    • Threat
      • QAB1(C)
    • Vars
      • K(e);S_FLIGHT,XR(D)::S(F)
      • K(e);S_FLIGHT::S(F)
      • Q(c);SBLOCK,XR(D)::B(G)+S(F)
      • Q(c);SBLOCK::B(G)+S(F)
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