MESON Chess Problem Database

Problem Display
PID: 43402 (1rb1K3/pp1p4/P2k1p2/1P3P2/1N4P1/QB2P3/N1Rbp1n1/B2Rq3 w - - 0 1)

Dyachuk, Vasyl Vasilovich

3rd Prize, Die Schwalbe, 2002

1rb1K3/pp1p4/P2k1p2/1P3P2/1N4P1/QB2P3/N1Rbp1n1/B2Rq3

#2

13 + 11

23 Die Schwalbe 2004
56 The Problemist 2005
5085 The Macedonian Problemist 2007
15174 FIDE Album (2001-2003) 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Qf2
      • 2.Rdxd2#
    • 1...Qg3
      • 2.Rdxd2#
    • 1...Qh4
      • 2.Rdxd2#
    • 1...Qf1
      • 2.Rdxd2#
    • 1...Qg1
      • 2.Rdxd2#
    • 1...Qh1
      • 2.Rdxd2#
    • 1...bxa6
      • 2.Sxa6#
  • Tries
    • 1.Bc3?
      • threat
        • 2.Sd5#
      • 1...Kc7
        • 2.Sd5#
      • 1...Kc5!
    • 1.Qb2?
      • threat
        • 2.Qd4#
        • 2.Qxf6#
      • 1...Sxe3
        • 2.Qxf6#
      • 1...Qh4
        • 2.Rdxd2#
        • 2.Qd4#
      • 1...Sf4!
    • 1.axb7?
      • threat
        • 2.Sa6#
        • 2.Qa6#
      • 1...Qxd1
        • 2.Qa6#
      • 1...Rxb7
        • 2.Sa6#
      • 1...exd1Q
        • 2.Qa6#
      • 1...exd1S
        • 2.Qa6#
      • 1...exd1B
        • 2.Qa6#
      • 1...exd1R
        • 2.Qa6#
      • 1...a5
        • 2.Sa6#
      • 1...a6
        • 2.Sxa6#
        • 2.Qxa6#
      • 1...Bxb7+!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Se4#
      • 1...Kc5
        • 2.Sbd5#
      • 1...Ke5
        • 2.Sd3#
      • 1...Kc7
        • 2.Sbd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • Q(a);N_GUARD::R(B),XB(b)
    • P(h);XP(L)::QAB(E)+S(H),XP(h)
  • Tries
    • Try
      • B(A);
      • Threat
        • QAB(E)+S(H)
      • Vars
        • K(e);N_SPINB(b),S_FLIGHT::S(H)
      • Refutation
        • K(e);N_SPINB(b),S_FLIGHT
    • Try
      • Q(E);
      • Threat
        • DUALS(2)
      • Vars
        • S(d);XP(G)::QAR2(E),XP(f)
      • Refutation
        • S(d);
    • Try
      • P(L);XP(h)
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);N_SPINB(b),XR(B)::QAR(E)
        • R(j);XP(L)::QAB(E)+S(H)
        • P(c);N_SPINB(b),P_PINP(G),XR(B)::QAR(E)
        • P(g);::QAB(E)+S(H)
      • Refutation
        • B(k);CHECK,XP(L)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • K(e);N_SPINB(b),S_FLIGHT::QAB(E)+S(H)
      • K(e);N_SPINB(b),S_FLIGHT::S(H)
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