MESON Chess Problem Database

Problem Display
PID: 229894 (2q5/8/8/7b/3Q4/bRp1N1P1/p2PPP2/2kBK2R w K - 0 1)

Melnichenko, Viktor Oleksandrovich

Rudenko, Valentin Fedorovich

Zadachi i Etyudi, 2000

2q5/8/8/7b/3Q4/bRp1N1P1/p2PPP2/2kBK2R

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Qh3
      • 2.Qxc3#
    • 1...Qg4
      • 2.Qxc3#
    • 1...Qa6
      • 2.Qxc3#
    • 1...Qe6
      • 2.Qxc3#
    • 1...Qb7
      • 2.Qxc3#
    • 1...Qd7
      • 2.Qxc3#
    • 1...Qa8
      • 2.Qxc3#
    • 1...Qb8
      • 2.Qxc3#
    • 1...Qd8
      • 2.Qxc3#
    • 1...Qe8
      • 2.Qxc3#
    • 1...Qf8
      • 2.Qxc3#
    • 1...Qg8
      • 2.Qxc3#
    • 1...Bc5
      • 2.Qxc3#
    • 1...cxd2+
      • 2.Qxd2#
    • 1...c2
      • 2.Qa1#
  • Tries
    • 1.Bc2?
      • threat
        • 2.0-0#
      • 1...cxd2+
        • 2.Qxd2#
      • 1...Bxe2
        • 2.Kxe2#
      • 1...Qh3!
  • Keys
    • 1.0-0!
      • threat
        • 2.Bc2#
      • 1...Bxe2
        • 2.Bxe2#
      • 1...cxd2
        • 2.Qa1#
      • 1...Qh3
        • 2.Qxc3#
      • 1...c2
        • 2.Bxc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 12
  • Sets
    • Q(f);N_GUARD::QAR2(J),XP(d)
    • B(c);S_CUTQ(f)::QAR2(J),XP(d)
    • P(d);CHECK,OGATE,XP(D)::QAB1(J),XP(d)
    • P(d);OGATE::QAR2(J)
  • Tries
    • Try
      • B(A);
      • Threat
        • 0-0
      • Vars
        • P(d);CHECK,OGATE,XP(D)::QAB1(J),XP(d)
        • B(e);XP(E)::R(C)+K(B),XB(e)
      • Refutation
        • Q(f);
  • Actual
    • K(B);0-0
    • Threat
      • R(C)+B(A)
    • Vars
      • B(e);OGATE,XP(E)::R(C)+B(A),XB(e)
      • P(d);OGATE,SBLOCK,XP(D)::QAR2(J)
      • Q(f);N_GUARD::QAR2(J),XP(d)
      • P(d);::R(C)+B(A),XP(d)
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