MESON Chess Problem Database

Problem Display
PID: 199803 (1B4B1/1p3n1Q/p1P1pP2/Rb1kN2R/1P2N3/2P1p1P1/8/4K3 w - - 0 1)

Handloser, Ralf Chris

Problemskak, 2014

1B4B1/1p3n1Q/p1P1pP2/Rb1kN2R/1P2N3/2P1p1P1/8/4K3

#2

13 + 7

SOLUTION

  • SOUND
  • Tries
    • 1.Sd2?
      • threat
        • 2.Qd3#
        • 2.Qe4#
      • 1...Sxe5
        • 2.Qe4#
        • 2.Qd7#
      • 1...Sg5
        • 2.Qd3#
        • 2.Qd7#
      • 1...Sd6
        • 2.Qd3#
      • 1...exd2+!
    • 1.Sf2?
      • threat
        • 2.Qd3#
        • 2.Qe4#
      • 1...Sxe5
        • 2.Qe4#
      • 1...Sg5
        • 2.Qd3#
        • 2.Qd7#
      • 1...Sd6
        • 2.Qd3#
      • 1...exf2+!
    • 1.Sg5?
      • threat
        • 2.Qd3#
        • 2.Qe4#
      • 1...Sxe5
        • 2.Qe4#
      • 1...Sxg5
        • 2.Qd3#
      • 1...Sd6!
    • 1.Sd6?
      • threat
        • 2.Qd3#
        • 2.Qe4#
      • 1...Sxe5
        • 2.Qe4#
      • 1...Sxd6
        • 2.Qd3#
      • 1...Sg5!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Qe4#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Sg5
        • 2.Qd7#
      • 1...Sd6
        • 2.Bxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • S(g);P_SPINP(e)::QAR2(K)
      • Refutation
        • P(a);CHECK,XS(E)
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • S(g);P_SPINP(e),P_SPINS(g),XS(G)::QAB1(K)
        • S(g);P_SPINP(e)::QAR2(K)
      • Refutation
        • P(a);CHECK,XS(E)
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • S(g);P_SPINP(e),XS(G)::QAB1(K)
        • S(g);P_SPINP(e),XS(E)::QAR2(K)
      • Refutation
        • S(g);P_SPINP(e)
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • S(g);P_SPINP(e),P_SPINS(g),XS(G)::QAB1(K)
        • S(g);P_SPINP(e),XS(E)::QAR2(K)
      • Refutation
        • S(g);P_SPINP(e)
  • Actual
    • S(E);N_PINB(b)
    • Threat
      • QAB1(K)
    • Vars
      • B(b);N_GUARD::QAR2(K),XB(b)
      • S(g);OGATE,P_SPINP(e)::QAR2(K)
      • S(g);OGATE,P_SPINP(e)::B(M),XP(e)
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