MESON Chess Problem Database

Problem Display
PID: 24482 (2B5/8/4NpQ1/2n5/6PB/RN1P1Pr1/3Pk1p1/2Rb2Kn w - - 0 1)

Boitmanis, Andris

2nd Place, Baltic Match, 1991-1993

2B5/8/4NpQ1/2n5/6PB/RN1P1Pr1/3Pk1p1/2Rb2Kn

#2

12 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf3
      • 2.Sbd4#
    • 1...Rxf3
      • 2.Sed4#
    • 1...Rh3
      • 2.Sed4#
    • 1...Bc2
      • 2.Sed4#
    • 1...Sxd3
      • 2.Qe4#
    • 1...Sa4
      • 2.Qe4#
    • 1...Se4
      • 2.Qxe4#
    • 1...Sa6
      • 2.Qe4#
    • 1...Sxe6
      • 2.Qe4#
    • 1...Sb7
      • 2.Qe4#
    • 1...Sd7
      • 2.Qe4#
  • Tries
    • 1.Qg5?
      • threat
        • 2.Qe3#
      • 1...Ke1
        • 2.Qe3#
      • 1...Kxd3
        • 2.Sf4#
        • 2.Qe3#
      • 1...Kxf3
        • 2.Sbd4#
        • 2.Sed4#
      • 1...Rxf3
        • 2.Sbd4#
      • 1...fxg5!
  • Keys
    • 1.Qh6!
      • threat
        • 2.Qe3#
      • 1...Ke1
        • 2.Qe3#
      • 1...Kxd3
        • 2.Sf4#
        • 2.Qe3#
      • 1...Kxf3
        • 2.Sed4#
      • 1...Rxf3
        • 2.Sbd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • K(c);S_FLIGHT,XP(G)::S(E)
    • R(e);XP(G)::S(J)
    • R(e);::S(J)
    • B(a);::S(J)
    • S(f);N_GUARD,XP(F)::QAR2(K)
    • S(f);N_GUARD::QAR2(K)
    • S(f);N_GUARD::QAR2(K),XS(f)
    • S(f);N_GUARD,XS(J)::QAR2(K)
  • Tries
    • Try
      • Q(K);
      • Threat
        • QAR1(K)
      • Vars
        • K(c);P-FLIGHT,P_SPINB(a),P_SPINR(e)::QAR2(K)
        • R(e);XP(G)::S(E)
      • Refutation
        • P(g);XQ(K)
  • Actual
    • Q(K);
    • Threat
      • QAR1(K)
    • Vars
      • K(c);P-FLIGHT,P_SPINB(a),P_SPINR(e)::QAR2(K)
      • K(c);S_FLIGHT,XP(G)::S(J)
      • R(e);XP(G)::S(E)
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