MESON Chess Problem Database

Problem Display
PID: 287573 (1K4BB/1P6/1p1k1NR1/2N2p2/4p3/2QP4/5n1r/2R3r1 w - - 0 1)

Roemele, HJ

Probleemblad, 1959

1K4BB/1P6/1p1k1NR1/2N2p2/4p3/2QP4/5n1r/2R3r1

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc1
      • 2.Sd5#
    • 1...Rd1
      • 2.Sd5#
    • 1...Re1
      • 2.Sd5#
    • 1...Rf1
      • 2.Sd5#
    • 1...Rgh1
      • 2.Sd5#
    • 1...bxc5
      • 2.Qxc5#
  • Tries
    • 1.Scxe4+?
      • 1...Sxe4
        • 2.Qc7#
      • 1...fxe4
        • 2.Qc7#
      • 1...Ke7!
    • 1.Qd4+?
      • 1...Kc6
        • 2.Qd7#
      • 1...Ke7!
    • 1.Qe5+?
      • 1...Kxe5
        • 2.Sh5#
      • 1...Kc6!
    • 1.Qc4?
      • threat
        • 2.Qe6#
      • 1...Ke5
        • 2.Sh5#
      • 1...Kc6
        • 2.Scxe4#
        • 2.Sg4#
      • 1...Rxc1
        • 2.Sd5#
      • 1...Ke7!
  • Keys
    • 1.Qb4!
      • threat
        • 2.Scd7#
      • 1...Ke5
        • 2.Sh5#
      • 1...Kc6
        • 2.Sg4#
      • 1...Ke7
        • 2.Se6#
      • 1...Rxc1
        • 2.Sd5#
      • 1...Sxd3
        • 2.Sxd3#
      • 1...bxc5
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • R(a);N_GUARD,XR(A)::R(F)+S(E)
    • R(a);N_GUARD::R(F)+S(E)
    • P(f);OGATE,XS(D)::QAB1(B),XP(f)
  • Tries
    • Try
      • S(D);CHECK,XP(d)
      • Vars
        • S(b);XS(D)::QAB1(B)
        • P(e);XS(D)::QAB1(B)
      • Refutation
        • K(g);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(g);OGATE,P-FLIGHT::QAB1(B)
      • Refutation
        • K(g);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(g);S_FLIGHT,XQ(B)::B(J)+S(E)
      • Refutation
        • K(g);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • K(g);N_GUARD,S_CUTR(a),S_FLIGHT::B(J)+S(E)
        • R(a);N_GUARD,XR(A)::R(F)+S(E)
      • Refutation
        • K(g);S_FLIGHT
  • Actual
    • Q(B);
    • Threat
      • QAB(B)+S(D)
    • Vars
      • K(g);N_GUARD,S_CUTR(a),S_FLIGHT::B(J)+S(E)
      • K(g);N_GUARD,P-FLIGHT::R(F)+S(E)
      • K(g);N_GUARD,S_FLIGHT::QAB(B)+S(D)
      • R(a);N_GUARD,XR(A)::R(F)+S(E)
      • S(b);XP(C)::QAB(B)+S(D),XS(b)
      • P(f);OGATE,P_SPINP(f),XS(D)::QAB1(B),XP(f)
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