MESON Chess Problem Database

Problem Display
PID: 261685 (2nNb3/Q2Rp3/2P3p1/2bpk3/5pP1/3K4/8/4B3 w - - 0 1)

Juricek, Stanislav

Sachove umeni (Ceskoslovensky sach), 2020

2nNb3/Q2Rp3/2P3p1/2bpk3/5pP1/3K4/8/4B3

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Ba3
      • 2.Qd4#
    • 1...Bb4
      • 2.Qd4#
    • 1...Bd4
      • 2.Qxd4#
    • 1...Bd6
      • 2.Qd4#
  • Tries
    • 1.Bc3+?
      • 1...Bd4
        • 2.Bxd4#
        • 2.Qxd4#
      • 1...d4!
    • 1.Qxc5?
      • threat
        • 2.Bc3#
        • 2.Qd4#
      • 1...Bxd7
        • 2.Bc3#
      • 1...f3
        • 2.Qd4#
      • 1...Kf6!
    • 1.Qa1+?
      • 1...Bd4
        • 2.Qxd4#
      • 1...d4!
  • Keys
    • 1.Rd6!
      • threat
        • 2.Re6#
      • 1...Kxd6
        • 2.Qb8#
      • 1...Bxd6
        • 2.Qd4#
      • 1...Sxd6
        • 2.Qxe7#
      • 1...exd6
        • 2.Qg7#
      • 1...f3
        • 2.Bg3#
      • 1...e6
        • 2.Rxe6#
      • 1...Bd7
        • 2.Sf7#
      • 1...Bf7
        • 2.Sxf7#
      • 1...d4
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 3
  • Sets
    • B(b);OGATE::QAB1(E)
    • B(b);OGATE::QAB1(E),XB(b)
  • Tries
    • Try
      • B(A);CHECK
      • Refutation
        • P(c);P_SPINP(c)
    • Try
      • Q(E);P_PINP(c),XB(b)
      • Threat
        • DUALS(2)
      • Vars
        • B(h);XR(F)::B(A)
        • P(a);::QAB1(E)
      • Refutation
        • K(d);N_SPINP(c),S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • B(b);N_GUARD,P_SPINB(b)::QAB1(E),XB(b)
      • Refutation
        • P(c);P_SPINP(c)
  • Actual
    • R(F);
    • Threat
      • R1(F)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XR(F)::QAB(E)
      • B(b);OGATE,SBLOCK,XR(F)::QAB1(E)
      • S(g);N_GUARD,XR(F)::QAR2(E),XP(f)
      • P(f);OGATE,SBLOCK,XR(F)::QAB(E)
      • P(a);OGATEB::B(A)
      • P(f);::R1(F),XP(f)
      • B(h);N_GUARD::S(G)
      • B(h);N_GUARD::S(G),XB(h)
      • P(c);OGATEB::QAR2(E),XB(b)
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