MESON Chess Problem Database

Problem Display
PID: 29941 (b1r5/q7/5Np1/n2p2K1/1Pp3BP/4kPBR/2Q1P3/6b1 w - - 0 1)

Kopaev, Viacheslav Georgievich

3rd Prize, Wola Gulowska, 1994

b1r5/q7/5Np1/n2p2K1/1Pp3BP/4kPBR/2Q1P3/6b1

#2

10 + 9

15345 Wola Gulowska Award 1994
5454 Near Snap 2008
5454 Near Snap 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qd2#
    • 1...c3
      • 2.Qd3#
  • Tries
    • 1.Sxd5+?
      • 1...Kd4
        • 2.Qd1#
        • 2.Qe4#
        • 2.Qd2#
      • 1...Bxd5!
    • 1.Be1?
      • threat
        • 2.Qd2#
      • 1...Kd4
        • 2.Qc3#
      • 1...Qd4
        • 2.f4#
      • 1...c3
        • 2.Qd3#
      • 1...Sb3!
    • 1.Bf4+?
      • 1...Kd4
        • 2.Qd2#
      • 1...Kf2!
    • 1.Qc1+?
      • 1...Kd4
        • 2.Qd2#
      • 1...Kxe2!
  • Keys
    • 1.f4!
      • threat
        • 2.Qc3#
      • 1...Kd4
        • 2.Qd2#
      • 1...Qd4
        • 2.Be1#
      • 1...c3
        • 2.Qd3#
      • 1...d4
        • 2.Qc1#

This anticipates 54551(1994), 54758(1994)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAR2(A)
    • P(c);N_GUARD::QAR1(A)
  • Tries
    • Try
      • S(J);CHECK,XP(e)
      • Refutation
        • B(h);XS(J)
    • Try
      • B(D);
      • Threat
        • QAB1(A)
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • Q(g);SBLOCK::R(E)+P(C)
        • P(c);N_GUARD::QAR1(A)
      • Refutation
        • S(d);
    • Try
      • B(D);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT,XP(B)
  • Actual
    • P(C);
    • Threat
      • QAR2(A)
    • Vars
      • K(b);S_FLIGHT::QAR2(A)
      • Q(g);SBLOCK::R(E)+B(D)
      • P(c);N_GUARD::QAR1(A)
      • P(e);SBLOCK::QAB(A)
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