MESON Chess Problem Database

Problem Display
PID: 276287 (8/2pK4/2rpP3/2NkP1p1/6N1/1Pq2P2/1QP2B2/b7 w - - 0 1)

Popa, Nicolae

Phenix, 2003

8/2pK4/2rpP3/2NkP1p1/6N1/1Pq2P2/1QP2B2/b7

#2

10 + 7

3713 Snap 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Qe1
      • 2.Sf6#
      • 2.c4#
    • 1...Qxb2
      • 2.c4#
    • 1...Qd2
      • 2.Sf6#
      • 2.c4#
    • 1...Qb4
      • 2.Sf6#
    • 1...Qa5
      • 2.Sf6#
      • 2.c4#
    • 1...Qxe5
      • 2.c4#
    • 1...Qxc2
      • 2.Sf6#
    • 1...Qxb3
      • 2.Qxb3#
    • 1...Qd3
      • 2.Sf6#
    • 1...Qxf3
      • 2.c4#
    • 1...Qc4
      • 2.Sf6#
    • 1...Qxc5
      • 2.Sf6#
    • 1...dxe5
      • 2.Sf6#
  • Tries
    • 1.Qxc3?
      • threat
        • 2.Se3#
        • 2.Sf6#
        • 2.Qc4#
      • 1...Rxc5
        • 2.Se3#
        • 2.Sf6#
      • 1...Bxc3!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Sf6#
      • 1...Qxe5
        • 2.Sb4#
      • 1...Qxb3
        • 2.Se3#

Anticipated by 276089(2002)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 8
  • Sets
    • Q(b);OGATE,XQ(A)::P(B)
    • Q(b);::S(F)
    • Q(b);OGATE,XP(H)::P(B)
    • Q(b);XP(B)::S(F)
    • Q(b);OGATE,XP(D)::QAB(A),XQ(b)
    • Q(b);OGATE,XP(E)::P(B)
    • Q(b);XS(G)::S(F)
    • P(f);SBLOCK,XP(H)::S(F)
  • Tries
    • Try
      • Q(A);XQ(b)
      • Threat
        • DUALS(3)
      • Refutation
        • B(a);XQ(A)
  • Actual
    • S(G);
    • Threat
      • S(F)
    • Vars
      • Q(b);N_GUARD,XP(H)::S(G)
      • Q(b);XP(D)::S(F)
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