MESON Chess Problem Database

Problem Display
PID: 53768 (4nK2/B3Q3/1r3p1p/3RN3/1p3kN1/q1p2p2/3pbR1P/1B1rb3 w - - 0 1)

Morales, Enrique

The Chess Review, 1935

4nK2/B3Q3/1r3p1p/3RN3/1p3kN1/q1p2p2/3pbR1P/1B1rb3

#2

9 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Rb5
      • 2.Be3#
    • 1...Ra6
      • 2.Be3#
    • 1...Rc6
      • 2.Be3#
    • 1...Rd6
      • 2.Be3#
    • 1...Re6
      • 2.Be3#
    • 1...Rb7
      • 2.Be3#
    • 1...Rb8
      • 2.Be3#
    • 1...f5
      • 2.Rd4#
  • Keys
    • 1.Se3!
      • threat
        • 2.Sg6#
      • 1...Kxe3
        • 2.Sd3#
      • 1...Kg5
        • 2.Sg6#
      • 1...fxe5
        • 2.Qxe5#
      • 1...Bd3
        • 2.Sxd3#
      • 1...f5
        • 2.Sg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • R(j);OGATE::B(G)
    • P(k);::R(E)
  • Actual
    • S(D);
    • Threat
      • S(F)
    • Vars
      • K(i);N_SPINP(g),P_SPINR(j),S_FLIGHT,XS(D)::QAR(H)+S(F)
      • K(i);N_SPINP(g),P_SPINP(k),S_FLIGHT::R(E)+S(F)
      • P(k);OGATE,XS(F)::QAB1(H),XP(k)
      • B(d);N_GUARD::S(F),XB(d)
      • P(k);::S(D)
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