MESON Chess Problem Database

Problem Display
PID: 265304 (K3b3/1B1p1q2/1R1p4/B1p5/P1k2P2/1N5Q/8/b3n3 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Veselenchuk, Semen Ivanovich

4th HM., The Problemist, 1994

K3b3/1B1p1q2/1R1p4/B1p5/P1k2P2/1N5Q/8/b3n3

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bc3
      • 2.Qxc3#
    • 1...Bd4
      • 2.Sd2#
    • 1...Sc2
      • 2.Qf1#
    • 1...Sf3
      • 2.Qf1#
    • 1...d5
      • 2.Ba6#
  • Tries
    • 1.Rxd6?
      • threat
        • 2.Sd2#
        • 2.Ba6#
      • 1...Qxf4
        • 2.Bd5#
        • 2.Ba6#
      • 1...Bc3
        • 2.Qxc3#
      • 1...Sd3
        • 2.Sd2#
        • 2.Qxd3#
      • 1...Qd5
        • 2.Bxd5#
      • 1...Sf3!
    • 1.Qg2?
      • threat
        • 2.Ba6#
      • 1...Kd3
        • 2.Qe4#
      • 1...Qd5
        • 2.Qxd5#
      • 1...Sf3
        • 2.Qf1#
        • 2.Qe2#
      • 1...Sxg2!
    • 1.Qe3?
      • threat
        • 2.Sd2#
      • 1...Bc3
        • 2.Qxc3#
      • 1...Sf3
        • 2.Qe2#
      • 1...Qd5!
    • 1.Qf3?
      • threat
        • 2.Ba6#
      • 1...Qd5
        • 2.Bxd5#
        • 2.Qxd5#
      • 1...Sxf3!
  • Keys
    • 1.Qh1!
      • threat
        • 2.Ba6#
      • 1...Kd3
        • 2.Qe4#
      • 1...Qd5
        • 2.Qxd5#
      • 1...Sg2
        • 2.Qf1#
      • 1...Sf3
        • 2.Qf1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • B(a);N_GUARD::QAR1(B),XB(a)
    • B(a);SBLOCK::S(A)
    • S(b);N_GUARD::QAB(B)
    • P(e);SBLOCK::B(G)
  • Tries
    • Try
      • R(F);XP(e)
      • Threat
        • DUALS(2)
      • Vars
        • B(a);N_GUARD::QAR1(B),XB(a)
        • Q(g);N_GUARD,P_PINB(G)::B(G),XQ(g)
      • Refutation
        • S(b);
    • Try
      • Q(B);
      • Threat
        • B(G)
      • Vars
        • K(c);S_CUTB(a),S_FLIGHT::QAB1(B)
        • Q(g);N_GUARD,P_PINB(G)::QAB1(B),XQ(g)
      • Refutation
        • S(b);XQ(B)
    • Try
      • Q(B);
      • Threat
        • S(A)
      • Vars
        • B(a);N_GUARD::QAR1(B),XB(a)
        • S(b);N_GUARD::QAB(B)
      • Refutation
        • Q(g);P_PINB(G)
    • Try
      • Q(B);
      • Threat
        • B(G)
      • Refutation
        • S(b);XQ(B)
  • Actual
    • Q(B);
    • Threat
      • B(G)
    • Vars
      • K(c);S_CUTB(a),S_FLIGHT::QAB1(B)
      • Q(g);N_GUARD,P_PINB(G)::QAB1(B),XQ(g)
      • S(b);N_GUARD::QAB(B)
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