MESON Chess Problem Database

Problem Display
PID: 216148 (K3Rb2/8/1P1k1n2/2pP4/B2Np1N1/5r2/3B4/2QR4 w - - 0 1)

Moen, Kabe

Probleemblad, 2019

K3Rb2/8/1P1k1n2/2pP4/B2Np1N1/5r2/3B4/2QR4

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Sxd5
      • 2.Re6#
    • 1...cxd4
      • 2.Qc6#
  • Tries
    • 1.Sb3?
      • threat
        • 2.Qxc5#
      • 1...Kxd5
        • 2.Be3#
      • 1...Rxb3
        • 2.Bf4#
      • 1...Rc3
        • 2.Bf4#
      • 1...c4
        • 2.Bb4#
      • 1...Sd7!
    • 1.Sf5+?
      • 1...Kxd5
        • 2.Sxf6#
        • 2.Be3#
        • 2.Re5#
      • 1...Rxf5!
    • 1.Bf4+?
      • 1...Kxd5
        • 2.Sxf3#
        • 2.Sxf6#
        • 2.Bc6#
      • 1...Rxf4!
    • 1.Rd8+?
      • 1...Sd7
        • 2.Rxd7#
      • 1...Ke7!
  • Keys
    • 1.Bb4!
      • threat
        • 2.Qxc5#
      • 1...Kxd5
        • 2.Sxf3#
      • 1...cxb4
        • 2.Qc6#
      • 1...Sd7
        • 2.Sb5#
      • 1...Rc3
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • S(e);SBLOCK,XP(G)::R1(J)
    • P(c);OGATE,XS(E)::QAR1(A)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAB1(A),XP(c)
      • Vars
        • K(d);OGATEB,P-FLIGHT,XP(G)::R(B)+B(C)
        • R(a);N_GUARD,XS(E)::B(C)
        • R(a);N_GUARD::B(C)
        • P(c);OGATEB::B(C)
      • Refutation
        • S(e);
    • Try
      • S(E);CHECK
      • Refutation
        • R(a);XS(E)
    • Try
      • B(C);CHECK
      • Refutation
        • R(a);XB(C)
    • Try
      • R(J);CHECK
      • Vars
        • S(e);N_GUARD,P_SPINS(e)::R1(J),XS(e)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • B(C);P_PINP(c)
    • Threat
      • QAB1(A),XP(c)
    • Vars
      • K(d);N_SPINP(c),P-FLIGHT,XP(G)::R(B)+S(E),XR(a)
      • P(c);N_SPINP(c),OGATE,XB(C)::QAR1(A)
      • S(e);SBLOCK::S(E)
      • R(a);N_GUARD::S(E)
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