MESON Chess Problem Database

Problem Display
PID: 72337 (3RNQ1n/pk1p4/pn6/6p1/BN3b2/4p1B1/8/1R4K1 w - - 0 1)

Mitrinovic, Stevan

Chess, 1953

3RNQ1n/pk1p4/pn6/6p1/BN3b2/4p1B1/8/1R4K1

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bb8
      • 2.Rxb8#
    • 1...Sd5
      • 2.Sxd5#
    • 1...d5
      • 2.Bc6#
    • 1...d6
      • 2.Bc6#
  • Tries
    • 1.Sd6+?
      • 1...Kc7
        • 2.Sxa6#
      • 1...Bxd6!
    • 1.Qxf4?
      • threat
        • 2.Rb8#
        • 2.Qc7#
        • 2.Qb8#
      • 1...Sd5
        • 2.Sxd5#
        • 2.Rb8#
        • 2.Qb8#
      • 1...Sa8
        • 2.Rb8#
        • 2.Qb8#
      • 1...Sc8
        • 2.Qb8#
      • 1...d6
        • 2.Bc6#
      • 1...gxf4!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Sc5#
      • 1...Bb8
        • 2.Rxb8#
      • 1...Bd6
        • 2.Qf3#
      • 1...d6
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(b);N_GUARD::R1(F),XB(b)
    • S(e);::R(A)+S(E),XS(e)
    • P(h);N_GUARD::B(D)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(g);P-FLIGHT::S(E),XP(d)
      • Refutation
        • B(b);XS(G)
    • Try
      • Q(H);XB(b)
      • Threat
        • DUALS(3)
      • Vars
        • S(e);::QAR1(H)
        • P(h);N_GUARD::B(D)
      • Refutation
        • P(c);XQ(H)
  • Actual
    • S(E);P_PINS(e)
    • Threat
      • S(E)
    • Vars
      • B(b);N_GUARD::R1(F),XB(b)
      • B(b);OGATE::QAB(H)
      • P(h);OGATEB::QAR(H)
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