MESON Chess Problem Database

Problem Display
PID: 70783 (K7/5B2/pPk5/2PRp3/Pn2R3/3n2b1/4N3/1Q6 w - - 0 1)

Mees, Wouter Jacob Gregorius

Probleemblad, 1999

K7/5B2/pPk5/2PRp3/Pn2R3/3n2b1/4N3/1Q6

#2

9 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Red4?
      • threat
        • 2.Be8#
      • 1...Sxc5
        • 2.Rd6#
      • 1...exd4
        • 2.Sxd4#
      • 1...Sxd5!
    • 1.Qc2?
      • threat
        • 2.Rd6#
      • 1...Sxc5
        • 2.Qxc5#
      • 1...Sxd5
        • 2.Be8#
      • 1...Sxc2!
    • 1.Qxd3?
      • threat
        • 2.Be8#
      • 1...Sxd5
        • 2.Qxd5#
      • 1...Sxd3!
    • 1.Qc1?
      • threat
        • 2.Rd6#
        • 2.Qh6#
      • 1...Sxc5
        • 2.Qxc5#
      • 1...Sxd5
        • 2.Be8#
      • 1...Bf4
        • 2.Rd6#
      • 1...Bh4
        • 2.Rd6#
      • 1...Sf4
        • 2.Rd6#
      • 1...Sc2
        • 2.Qh6#
      • 1...Sxc1!
    • 1.Qg1?
      • threat
        • 2.Rd6#
      • 1...Sxc5
        • 2.Qxc5#
      • 1...Sxd5
        • 2.Be8#
      • 1...Bf2
        • 2.Qg6#
      • 1...Sf2!
    • 1.Qb3?
      • threat
        • 2.Be8#
      • 1...Sxd5
        • 2.Qxd5#
      • 1...Sxc5!
    • 1.Qxb4?
      • threat
        • 2.Rd6#
      • 1...Sxc5
        • 2.Qxc5#
      • 1...Sxb4!
  • Keys
    • 1.Rc4!
      • threat
        • 2.Rd6#
      • 1...Sxc5
        • 2.Qg6#
      • 1...Sxd5
        • 2.Be8#
      • 1...e4
        • 2.Sd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);
      • Threat
        • B(H)
      • Vars
        • S(a);SBLOCK,XP(E)::R1(F)
        • P(d);XR(D)::S(B),XP(d)
      • Refutation
        • S(c);XR(F)
    • Try
      • Q(A);
      • Threat
        • R1(F)
      • Vars
        • S(a);OGATE,P_SPINS(a),XP(E)::QAR1(A),XS(a)
        • S(c);SBLOCK,XR(F)::B(H)
      • Refutation
        • S(c);XQ(A)
    • Try
      • Q(A);XS(a)
      • Threat
        • B(H)
      • Vars
        • S(c);OGATE,XR(F)::QAB1(A),XS(c)
      • Refutation
        • S(c);XQ(A)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);OGATE,P_SPINS(a),XP(E)::QAR1(A),XS(a)
        • S(c);SBLOCK,XR(F)::B(H)
        • B(b);::R1(F)
        • S(a);::R1(F)
        • S(c);::QAR(A)
      • Refutation
        • S(a);XQ(A)
    • Try
      • Q(A);
      • Threat
        • R1(F)
      • Vars
        • S(a);OGATE,XP(E)::QAR1(A),XS(a)
        • S(c);SBLOCK,XR(F)::B(H)
        • B(b);OGATE::QAR(A)
      • Refutation
        • S(a);
    • Try
      • Q(A);
      • Threat
        • B(H)
      • Vars
        • S(c);OGATE,XR(F)::QAB1(A),XS(c)
      • Refutation
        • S(a);XP(E)
    • Try
      • Q(A);XS(c)
      • Threat
        • R1(F)
      • Vars
        • S(a);OGATE,XP(E)::QAR1(A),XS(a)
      • Refutation
        • S(a);XQ(A)
  • Actual
    • R(D);
    • Threat
      • R1(F)
    • Vars
      • S(a);OGATE,P_SPINS(a),XP(E)::QAR(A)
      • S(c);SBLOCK,XR(F)::B(H)
      • P(d);N_GUARD::S(B)
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