MESON Chess Problem Database

Problem Display
PID: 245040 (Qr1B4/1nK1pp2/2NPkp2/3p1p2/3R1PP1/3R1N2/3n2r1/7B w - - 0 1)

Buglos, Janos

Scacchi e Scienze Applicate, 2003

Qr1B4/1nK1pp2/2NPkp2/3p1p2/3R1PP1/3R1N2/3n2r1/7B

#2

11 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rc8+
      • 2.Qxc8#
    • 1...Sb1
      • 2.Re3#
    • 1...Sb3
      • 2.Re3#
  • Tries
    • 1.Sh4?
      • threat
        • 2.gxf5#
      • 1...Rc8+
        • 2.Qxc8#
      • 1...Rxg4
        • 2.Bxd5#
      • 1...fxg4
        • 2.f5#
      • 1...Sxd6!
    • 1.Sxe7?
      • threat
        • 2.gxf5#
      • 1...Rc8+
        • 2.Qxc8#
      • 1...Sxd6
        • 2.Qxd5#
      • 1...fxg4
        • 2.f5#
      • 1...Rxg4!
    • 1.Re4+?
      • 1...Sxe4
        • 2.Sfd4#
        • 2.Scd4#
      • 1...fxe4
        • 2.Sfd4#
        • 2.Scd4#
        • 2.f5#
      • 1...dxe4!
  • Keys
    • 1.Rxd5!
      • threat
        • 2.gxf5#
      • 1...Rc8+
        • 2.Qxc8#
      • 1...Rxg4
        • 2.Sfd4#
      • 1...Sxd6
        • 2.Scd4#
      • 1...fxg4
        • 2.f5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(j);CHECK,OGATE::QAB(J),XR(j)
    • S(a);N_GUARD::R(B)
  • Tries
    • Try
      • S(C);
      • Threat
        • P(F),XP(d)
      • Vars
        • R(j);CHECK,OGATE::QAB(J),XR(j)
        • R(b);OGATE,XP(F)::B(A),XP(c)
        • P(d);OGATE,XP(F)::P(E)
      • Refutation
        • S(g);XP(H)
    • Try
      • S(G);XP(h)
      • Threat
        • P(F),XP(d)
      • Vars
        • R(j);CHECK,OGATE::QAB(J),XR(j)
        • S(g);OGATE,XP(H)::QAB1(J),XP(c)
        • P(d);OGATE,XP(F)::P(E)
      • Refutation
        • R(b);XP(F)
    • Try
      • R(D);CHECK
      • Refutation
        • P(c);XR(D)
  • Actual
    • R(D);XP(c)
    • Threat
      • P(F),XP(d)
    • Vars
      • R(j);CHECK,OGATE::QAB(J),XR(j)
      • R(b);XP(F)::S(C)
      • S(g);XP(H)::S(G)
      • P(d);OGATE,XP(F)::P(E)
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