MESON Chess Problem Database

Problem Display
PID: 274830 (B7/6N1/3P3r/KNk2p2/1ppp1q2/5p2/3P4/4Q1B1 w - - 0 1)

Zheltonozhko, Vladimir Ivanovich

Springaren, 1992

B7/6N1/3P3r/KNk2p2/1ppp1q2/5p2/3P4/4Q1B1

#2

8 + 8

3713 Snap 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd2
      • 2.Qe5#
    • 1...Qh2
      • 2.Bxd4#
    • 1...Qg3
      • 2.Bxd4#
    • 1...Qe5
      • 2.Qxe5#
    • 1...Qg5
      • 2.Bxd4#
      • 2.Qe5#
    • 1...Qg4
      • 2.Qe5#
    • 1...Qh4
      • 2.Qe5#
    • 1...Rh1
      • 2.Se6#
    • 1...Rh2
      • 2.Se6#
    • 1...Rh3
      • 2.Se6#
    • 1...Rh4
      • 2.Se6#
    • 1...Rh5
      • 2.Se6#
    • 1...Re6
      • 2.Sxe6#
    • 1...Rh7
      • 2.Se6#
    • 1...Rh8
      • 2.Se6#
  • Tries
    • 1.Qb1?
      • threat
        • 2.Qxb4#
      • 1...Qxd2
        • 2.Qxf5#
      • 1...b3!
    • 1.d3?
      • threat
        • 2.Qxb4#
      • 1...Qd2
        • 2.Bxd4#
        • 2.Qe5#
      • 1...b3
        • 2.Qb4#
      • 1...c3!
  • Keys
    • 1.Qe7!
      • threat
        • 2.Qa7#
        • 2.Qc7#
      • 1...Qxd6
        • 2.Bxd4#
      • 1...Rxd6
        • 2.Se6#
      • 1...c3
        • 2.Qc7#
      • 1...Qe4
        • 2.Qa7#

Anticipated by 274175(1991)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 14
  • Sets
    • Q(e);N_GUARD,XP(C)::QAR2(A)
    • Q(e);N_GUARD::B(B),XP(d)
    • Q(e);N_GUARD::QAR2(A),XQ(e)
    • Q(e);N_GUARD::QAR2(A)
    • R(h);N_GUARD::S(G)
    • R(h);N_GUARD::S(G),XR(h)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A),XP(b)
      • Vars
        • Q(e);N_GUARD,XP(C)::QAR(A),XP(g)
      • Refutation
        • P(b);
    • Try
      • P(C);
      • Threat
        • QAB1(A),XP(b)
      • Vars
        • P(b);::QAB1(A)
      • Refutation
        • P(c);
  • Actual
    • Q(A);
    • Threat
      • DUALS(2)
    • Vars
      • Q(e);N_GUARD,P_SPINQ(e),XP(F)::B(B),XP(d)
      • R(h);N_GUARD,P_SPINR(h),XP(F)::S(G)
      • P(c);::QAR2(A)
      • Q(e);::QAB(A)
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