MESON Chess Problem Database

Problem Display
PID: 231344 (Q1B2BN1/1rp3RK/1p1P4/n2k1N2/2p1pP2/2P1p3/8/8 w - - 0 1)

Krasni, Anatoly Savelevich

6th HM., Shakhmaty, 1927

Q1B2BN1/1rp3RK/1p1P4/n2k1N2/2p1pP2/2P1p3/8/8

#2

10 + 8

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...c5
      • 2.Sge7#
  • Tries
    • 1.Rxc7?
      • threat
        • 2.Sxe3#
        • 2.Sf6#
        • 2.Sge7#
      • 1...e2
        • 2.Se3#
        • 2.Sf6#
        • 2.Sge7#
      • 1...Sc6!
  • Keys
    • 1.Rg5!
      • threat
        • 2.Sd4#
      • 1...cxd6+
        • 2.Sfe7#
      • 1...c5+
        • 2.Sge7#
      • 1...c6+
        • 2.Sg7#
      • 1...Kc5
        • 2.Sd4#
      • 1...Kc6
        • 2.Sd4#
      • 1...Sc6
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • P(h);P_PINR(E),SBLOCK::S(J)
  • Tries
    • Try
      • R(E);P_SPINR(E),XP(h)
      • Threat
        • DUALS(3)
      • Refutation
        • S(d);N_SPINR(g)
  • Actual
    • R(E);
    • Threat
      • R(E)+S(C)
    • Vars
      • P(h);CHECK,SBLOCK,XP(D)::R(E)+S(C),DCHECK
      • P(h);CHECK,SBLOCK::S(J)
      • P(h);CHECK,N_SPINR(g),SBLOCK::R(E)+S(C)
      • K(e);N_SPINR(g),P-FLIGHT::R(E)+S(C)
      • K(e);S_FLIGHT::S(C)
      • S(d);N_SPINR(g),SBLOCK::R(E)+S(C),DCHECK,XP(a)
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Developed and maintained by Brian Stephenson.
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