MESON Chess Problem Database

Problem Display
PID: 49742 (3R3q/3r4/2p2b1p/1pN3p1/2kP2Q1/B1P4K/3pP1B1/1n1N4 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Kopyl, Valery Volodimirovich

Melnichenko, Viktor Oleksandrovich

2nd Prize, The Problemist, 2003/I

3R3q/3r4/2p2b1p/1pN3p1/2kP2Q1/B1P4K/3pP1B1/1n1N4

#2

10 + 10

56 The Problemist 2005
23 Die Schwalbe 2008
56 The Problemist 2008
15174 FIDE Album (2001-2003) 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Ra7
      • 2.Qe6#
    • 1...Rb7
      • 2.Qe6#
    • 1...Rc7
      • 2.Qe6#
    • 1...Rf7
      • 2.Qe6#
    • 1...Rg7
      • 2.Qe6#
    • 1...Rh7
      • 2.Qe6#
    • 1...Sxc3
      • 2.Sb2#
      • 2.Se3#
  • Tries
    • 1.Bb4?
      • threat
        • 2.Sb2#
        • 2.Se3#
      • 1...Qe8
        • 2.Sb2#
      • 1...Re7
        • 2.Sb2#
      • 1...Sxc3!
    • 1.Qf3?
      • threat
        • 2.Sb2#
        • 2.Qd3#
      • 1...Rxd4
        • 2.Sb2#
      • 1...Sxc3
        • 2.Qxc3#
        • 2.Qd3#
      • 1...b4
        • 2.Qd3#
      • 1...Qh7
        • 2.Sb2#
      • 1...g4+!
    • 1.Qg3?
      • threat
        • 2.Sb2#
        • 2.Qd3#
      • 1...Rxd4
        • 2.Sb2#
      • 1...Sxc3
        • 2.Qxc3#
        • 2.Qd3#
      • 1...b4
        • 2.Qd3#
      • 1...Qh7
        • 2.Sb2#
      • 1...g4+!
    • 1.e3?
      • threat
        • 2.Qe2#
      • 1...Rxd4
        • 2.Bf1#
      • 1...Sxc3
        • 2.Sb2#
      • 1...Qh7!
  • Keys
    • 1.Bf1!
      • threat
        • 2.e4#
      • 1...Kd5
        • 2.Qe6#
      • 1...Rxd4
        • 2.e3#
      • 1...Sxc3
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • R(i);N_GUARD::QAB(H)
  • Tries
    • Try
      • B(D);
      • Threat
        • DUALS(2)
      • Vars
        • Q(j);::S(A)
        • R(i);::S(A)
      • Refutation
        • S(a);XP(E)
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • R(i);XP(G)::S(A)
        • P(d);::QAB1(H)
        • Q(j);::S(A)
      • Refutation
        • P(e);CHECK
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • R(i);XP(G)::S(A)
        • P(d);::QAB1(H)
        • Q(j);::S(A)
      • Refutation
        • P(e);CHECK
    • Try
      • P(B);
      • Threat
        • QAB(H)
      • Vars
        • R(i);P_SPINR(i),XP(G)::B(C)
        • S(a);SBLOCK,XP(E)::S(A)
      • Refutation
        • Q(j);
  • Actual
    • B(C);
    • Threat
      • B(C)+P(B)
    • Vars
      • K(c);P_SPINR(i),S_FLIGHT::QAB1(H)
      • R(i);P_SPINR(i),XP(G)::B(C)+P(B)
      • S(a);SBLOCK,XP(E)::S(A)
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