MESON Chess Problem Database

Problem Display
PID: 244715 (1n4N1/3r1p2/p4BpP/Rq3kPp/2Qp4/3N1PP1/8/5K2 w - - 0 1)

Colaneri, Bruno

Candela MT (Problemas), 2018

1n4N1/3r1p2/p4BpP/Rq3kPp/2Qp4/3N1PP1/8/5K2

#2

10 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qe5
      • 2.Rxe5#
    • 1...Rd6
      • 2.Se7#
    • 1...Re7
      • 2.Sxe7#
    • 1...Rd8
      • 2.Se7#
    • 1...h4
      • 2.g4#
  • Tries
    • 1.Rxb5+?
      • 1...Rd5
        • 2.Qxd5#
      • 1...axb5!
    • 1.Qxb5+?
      • 1...Ke6
        • 2.Qe5#
      • 1...Rd5
        • 2.Qxd5#
      • 1...axb5!
    • 1.Qxf7?
      • threat
        • 2.Be7#
      • 1...Rd6
        • 2.Se7#
      • 1...Re7
        • 2.Sxe7#
        • 2.Bxe7#
      • 1...Rxf7!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Qd3#
      • 1...Rd5
        • 2.Se7#
      • 1...Re7
        • 2.Sxe7#
      • 1...d3
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • Q(b);OGATE::R1(F),XQ(b)
    • R(g);N_GUARD::S(J)
    • R(g);N_GUARD::S(J),XR(g)
    • P(d);N_GUARD::P(D)
  • Tries
    • Try
      • R(F);CHECK,XQ(b)
      • Vars
        • R(g);N_GUARD,P_SPINR(g)::QAR2(E),XR(g)
      • Refutation
        • P(e);XR(F)
    • Try
      • Q(E);CHECK,XQ(b)
      • Vars
        • K(c);S_FLIGHT::QAR1(E)
        • R(g);N_GUARD,P_SPINR(g)::QAR2(E),XR(g)
      • Refutation
        • P(e);P_SPINP(e),XQ(E)
    • Try
      • Q(E);P_SPINS(B),XP(h)
      • Threat
        • QAR(E)+B(H)
      • Vars
        • R(g);N_GUARD::S(J)
      • Refutation
        • R(g);XQ(E)
  • Actual
    • S(B);P_SPINQ(E)
    • Threat
      • QAB(E)
    • Vars
      • R(g);N_GUARD,N_SPINQ(b)::S(J)
      • R(g);N_GUARD::S(J),XR(g)
      • P(a);N_PINQ(E)::QAB1(E)
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