MESON Chess Problem Database

Problem Display
PID: 10683 (Q6n/1K5P/1P1PN3/1R1Pp2R/1P2k1p1/1N2P1r1/1np1P1Pb/2B2B2 w - - 0 1)

Haring, Jacobus

De Waarheid, 1967

Q6n/1K5P/1P1PN3/1R1Pp2R/1P2k1p1/1N2P1r1/1np1P1Pb/2B2B2

#2

16 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg2
      • 2.Bxg2#
    • 1...Rxe3
      • 2.Sd2#
    • 1...Sd3
      • 2.exd3#
  • Tries
    • 1.Ka6?
      • threat
        • 2.Sbc5#
        • 2.Sec5#
      • 1...Rxe3
        • 2.Sd2#
        • 2.Sbc5#
      • 1...Sd3
        • 2.exd3#
      • 1...Sa4!
    • 1.Kc6?
      • threat
        • 2.Sbc5#
        • 2.Sec5#
      • 1...Rxe3
        • 2.Sd2#
        • 2.Sbc5#
      • 1...Sd3
        • 2.exd3#
      • 1...Sa4!
    • 1.Ka7?
      • threat
        • 2.Sbc5#
        • 2.Sec5#
      • 1...Rxe3
        • 2.Sd2#
        • 2.Sbc5#
      • 1...Sd3
        • 2.exd3#
      • 1...Sa4!
    • 1.Kc7?
      • threat
        • 2.Sbc5#
        • 2.Sec5#
      • 1...Rxe3
        • 2.Sd2#
        • 2.Sbc5#
      • 1...Sd3
        • 2.exd3#
      • 1...Sa4!
    • 1.Kb8?
      • threat
        • 2.Sbc5#
        • 2.Sec5#
      • 1...Rxe3
        • 2.Sd2#
        • 2.Sbc5#
      • 1...Sd3
        • 2.exd3#
      • 1...Sa4!
    • 1.Kc8?
      • threat
        • 2.Sbc5#
        • 2.Sec5#
      • 1...Rxe3
        • 2.Sd2#
        • 2.Sbc5#
      • 1...Sd3
        • 2.exd3#
      • 1...Sa4!
    • 1.Qa3?
      • threat
        • 2.Sd2#
      • 1...Sd3
        • 2.exd3#
      • 1...Sc4!
    • 1.Qc8?
      • threat
        • 2.Sg5#
      • 1...Rxe3
        • 2.Sd2#
      • 1...Sf7!
    • 1.Qf8?
      • threat
        • 2.Sg5#
        • 2.Qf5#
      • 1...Rf3
        • 2.Sg5#
      • 1...Sf7!
    • 1.Qg8?
      • threat
        • 2.Sec5#
      • 1...Rxe3
        • 2.Sd2#
      • 1...Sd3
        • 2.exd3#
      • 1...Sf7
        • 2.Qg6#
      • 1...Sa4!
  • Keys
    • 1.Qa2!
      • threat
        • 2.Sbc5#
      • 1...Sa4
        • 2.Qxc2#
      • 1...Sd3
        • 2.exd3#
      • 1...Sc4
        • 2.Qxc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(d);OGATE,XP(D)::B(B),XR(d)
    • R(d);SBLOCK,XP(F)::S(E)
    • S(a);OGATE::P(C),XS(a)
  • Tries
    • Try
      • K(N);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • S(a);OGATE::P(C),XS(a)
      • Refutation
        • S(a);
    • Try
      • K(N);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • S(a);OGATE::P(C),XS(a)
      • Refutation
        • S(a);
    • Try
      • K(N);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • S(a);OGATE::P(C),XS(a)
      • Refutation
        • S(a);
    • Try
      • K(N);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • S(a);OGATE::P(C),XS(a)
      • Refutation
        • S(a);
    • Try
      • K(N);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • S(a);OGATE::P(C),XS(a)
      • Refutation
        • S(a);
    • Try
      • K(N);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • S(a);OGATE::P(C),XS(a)
      • Refutation
        • S(a);
    • Try
      • Q(P);
      • Threat
        • S(E)
      • Vars
        • S(a);OGATE::P(C),XS(a)
      • Refutation
        • S(a);
    • Try
      • Q(P);
      • Threat
        • S(M)
      • Vars
        • R(d);SBLOCK,XP(F)::S(E)
      • Refutation
        • S(h);
    • Try
      • Q(P);
      • Threat
        • DUALS(2)
      • Vars
        • R(d);::S(M)
      • Refutation
        • S(h);
    • Try
      • Q(P);
      • Threat
        • S(M)
      • Vars
        • R(d);SBLOCK,XP(F)::S(E)
        • S(a);OGATE::P(C),XS(a)
        • S(h);N_GUARD::QAB(P)
      • Refutation
        • S(a);
  • Actual
    • Q(P);
    • Threat
      • S(E)
    • Vars
      • S(a);OGATE::QAB(P),XP(b)
      • S(a);OGATE::P(C),XS(a)
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