MESON Chess Problem Database

Problem Display
PID: 265998 (3K2n1/R6B/1N2P3/2P1kP2/7P/p3P3/1b3N2/B5R1 w - - 0 1)

Uris, Miguel

StrateGems, 2022

3K2n1/R6B/1N2P3/2P1kP2/7P/p3P3/1b3N2/B5R1

#2

12 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Sg4#
      • 2.Sd7#
    • 1...Bc3
      • 2.Bxc3#
    • 1...Bd4
      • 2.Bxd4#
    • 1...a2
      • 2.Bxb2#
  • Tries
    • 1.Sd3+?
      • 1...Kf6
        • 2.Sd5#
        • 2.Sd7#
        • 2.Rf7#
      • 1...Ke4!
    • 1.Sc4+?
      • 1...Kf6
        • 2.Se4#
        • 2.Sg4#
        • 2.Rf7#
      • 1...Kd5!
    • 1.Rxg8?
      • 1...Kf6
        • 2.Sg4#
        • 2.Sd7#
      • 1...Bc3
        • 2.Bxc3#
      • 1...Bd4
        • 2.Bxd4#
      • 1...a2
        • 2.Bxb2#
      • 1...Bxa1!
    • 1.Rxa3?
      • threat
        • 2.Bxb2#
      • 1...Kf6
        • 2.Sd7#
        • 2.Bxb2#
      • 1...Bc3
        • 2.Bxc3#
      • 1...Bd4
        • 2.Bxd4#
      • 1...Bxa1!
    • 1.Ra4?
      • threat
        • 2.Sg4#
      • 1...Kf6
        • 2.Sd7#
      • 1...Sf6
        • 2.Sd3#
      • 1...Bd4
        • 2.Bxd4#
      • 1...Sh6!
  • Keys
    • 1.Rd1!
      • threat
        • 2.Sd7#
      • 1...Kf6
        • 2.Sg4#
      • 1...Sf6
        • 2.Sc4#
      • 1...Bd4
        • 2.Bxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(a);OGATE::B(A),XB(a)
    • P(b);N_GUARD::B(A),XB(a)
  • Tries
    • Try
      • S(C);CHECK
      • Refutation
        • K(c);N_SPINB(a),P-FLIGHT
    • Try
      • S(H);CHECK
      • Refutation
        • K(c);N_SPINB(a),P-FLIGHT
    • Try
      • R(B);XS(d)
      • Vars
        • B(a);OGATE::B(A),XB(a)
        • P(b);N_GUARD::B(A),XB(a)
      • Refutation
        • B(a);N_SPINB(a),XB(A)
    • Try
      • R(J);XP(b)
      • Threat
        • B(A),XB(a)
      • Vars
        • B(a);OGATE::B(A),XB(a)
      • Refutation
        • B(a);N_SPINB(a),XB(A)
    • Try
      • R(J);
      • Threat
        • S(C)
      • Vars
        • K(c);N_GUARD,S_FLIGHT::S(H)
        • S(d);SBLOCK::S(C)
        • B(a);OGATE::B(A),XB(a)
      • Refutation
        • S(d);
  • Actual
    • R(B);
    • Threat
      • S(H)
    • Vars
      • K(c);N_GUARD,S_FLIGHT::S(C)
      • S(d);SBLOCK::S(H)
      • B(a);OGATE::B(A),XB(a)
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