MESON Chess Problem Database

Problem Display
PID: 7731 (8/2p5/2N1Q1N1/4P3/K3k3/2p1r1p1/2pPp1p1/8 w - - 0 1)

Rychkov, Vladimir Nikolaevich

Zheltonozhko, Vladimir Ivanovich

Intelectualie Egri, 1993

8/2p5/2N1Q1N1/4P3/K3k3/2p1r1p1/2pPp1p1/8

#2

6 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qd5#
    • 1...Kf3
      • 2.Qf5#
  • Tries
    • 1.Sb4?
      • threat
        • 2.Qg4#
      • 1...Kf3
        • 2.Qf5#
      • 1...Kd4
        • 2.Qd5#
      • 1...Rf3!
    • 1.Sce7?
      • threat
        • 2.Qd5#
      • 1...Kd3
        • 2.Qd5#
      • 1...Kf3
        • 2.Qf5#
      • 1...Kd4
        • 2.Qd5#
      • 1...Rd3
        • 2.Qg4#
      • 1...c6!
    • 1.Sh4?
      • threat
        • 2.Qc4#
      • 1...Kd3
        • 2.Qd5#
      • 1...Kf4
        • 2.Qf5#
      • 1...Rd3!
    • 1.Qc4+?
      • 1...Kf3
        • 2.Qf4#
      • 1...Kf5!
    • 1.Qg4+?
      • 1...Kd3
        • 2.Qd4#
      • 1...Kd5!
    • 1.d3+?
      • 1...Kxd3
        • 2.Qd5#
      • 1...Kf3
        • 2.Qf5#
      • 1...Rxd3!
  • Keys
    • 1.Sge7!
      • threat
        • 2.Qf5#
      • 1...Kd3
        • 2.Qd5#
      • 1...Kf3
        • 2.Qf5#
      • 1...Kf4
        • 2.Qf5#
      • 1...Rf3
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(g);S_FLIGHT::QAR2(E)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR2(E)
      • Vars
        • K(g);S_FLIGHT::QAR2(E)
        • K(g);P-FLIGHT::QAR1(E)
      • Refutation
        • R(e);
    • Try
      • S(D);
      • Threat
        • QAB1(E)
      • Vars
        • K(g);S_FLIGHT::QAR2(E)
        • K(g);P-FLIGHT::QAR1(E)
        • R(e);SBLOCK::QAR2(E)
      • Refutation
        • P(h);
    • Try
      • S(F);
      • Threat
        • QAR2(E)
      • Vars
        • K(g);S_FLIGHT::QAR2(E)
        • K(g);P-FLIGHT::QAR1(E)
      • Refutation
        • R(e);
    • Try
      • Q(E);CHECK
      • Vars
        • K(g);OGATE,S_FLIGHT::QAR1(E)
      • Refutation
        • K(g);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(g);OGATE,S_FLIGHT::QAR1(E)
      • Refutation
        • K(g);S_FLIGHT
    • Try
      • P(A);CHECK
      • Vars
        • K(g);S_FLIGHT,XP(A)::QAR2(E)
        • K(g);S_FLIGHT::QAR2(E)
      • Refutation
        • R(e);XP(A)
  • Actual
    • S(F);
    • Threat
      • QAB1(E)
    • Vars
      • K(g);S_FLIGHT::QAR2(E)
      • K(g);P-FLIGHT::QAR1(E)
      • R(e);SBLOCK::QAR2(E)
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