MESON Chess Problem Database

Problem Display
PID: 178002 (3n4/1R2K3/k7/p4N2/4Q3/8/8/8 w - - 0 1)

Sotnik, Wolodimir

Sahs Baltija, 1991

3n4/1R2K3/k7/p4N2/4Q3/8/8/8

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sc6+
      • 2.Qxc6#
    • 1...Se6
      • 2.Qc6#
    • 1...Sf7
      • 2.Qc6#
  • Tries
    • 1.Rb8?
      • threat
        • 2.Qa8#
      • 1...Ka7
        • 2.Qa8#
      • 1...Sb7
        • 2.Qxb7#
      • 1...Sc6+!
    • 1.Qd5?
      • threat
        • 2.Qb5#
      • 1...Sc6+
        • 2.Qxc6#
      • 1...Sxb7!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Qd3#
        • 2.Qe2#
        • 2.Qc4#
      • 1...Sc6+
        • 2.Qxc6#
      • 1...Sxb7
        • 2.Qxb7#
      • 1...a4
        • 2.Qxa4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • S(c);CHECK,N_GUARD::QAR2(A),XS(c)
    • S(c);N_GUARD::QAR2(A)
  • Tries
    • Try
      • R(C);
      • Threat
        • QAR2(A)
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
        • S(c);N_GUARD::QAB1(A),XS(c)
      • Refutation
        • S(c);CHECK
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • S(c);CHECK,N_GUARD::QAR2(A),XS(c)
      • Refutation
        • S(c);XR(C)
  • Actual
    • S(B);
    • Threat
      • DUALS(3)
    • Vars
      • S(c);CHECK,N_GUARD::QAR2(A),XS(c)
      • S(c);OGATE,XR(C)::QAB1(A),XS(c)
      • P(a);OGATEB::QAR2(A),XP(a)
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Developed and maintained by Brian Stephenson.
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