MESON Chess Problem Database

Problem Display
PID: 169996 (K1R1R3/1PbkqP2/6PQ/P7/2P1N1P1/3N4/8/8 w - - 0 1)

Garaza, Luis Alberto

Enroque!!, 1947

K1R1R3/1PbkqP2/6PQ/P7/2P1N1P1/3N4/8/8

#2

12 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.b8S#
    • 1...Ke6
      • 2.f8S#
    • 1...Qxe8
      • 2.fxe8Q#
  • Tries
    • 1.Sdc5+?
      • 1...Kc6
        • 2.b8S#
      • 1...Qxc5!
    • 1.Rxc7+?
      • 1...Ke6
        • 2.Rcxe7#
        • 2.Rexe7#
        • 2.f8S#
      • 1...Kxc7!
    • 1.Rxe7+?
      • 1...Kc6
        • 2.Sb4#
        • 2.Se5#
        • 2.Rexc7#
        • 2.Rcxc7#
        • 2.g7#
        • 2.b8S#
      • 1...Kxe7!
    • 1.b8S+?
      • 1...Ke6
        • 2.f8S#
      • 1...Bxb8!
    • 1.f8S+?
      • 1...Kc6
        • 2.b8S#
      • 1...Qxf8!
  • Keys
    • 1.Qd2!
      • 1...Kc6
        • 2.b8S#
      • 1...Ke6
        • 2.f8S#
      • 1...Qxe4
        • 2.Se5#
      • 1...Qxf7
        • 2.Se5#
      • 1...Qxe8
        • 2.fxe8Q#
      • 1...Bxa5
        • 2.Sdc5#
      • 1...Qa3
        • 2.Se5#
      • 1...Qb4
        • 2.Se5#
      • 1...Qh4
        • 2.Se5#
      • 1...Qc5
        • 2.Se5#
      • 1...Qg5
        • 2.Se5#
      • 1...Qd6
        • 2.Se5#
      • 1...Qf6
        • 2.Se5#
      • 1...Qd8
        • 2.Se5#
      • 1...Qf8
        • 2.Se5#
      • 1...Qe5
        • 2.Sxe5#
      • 1...Qe6
        • 2.Se5#
      • 1...Bh2
        • 2.Sdc5#
      • 1...Bg3
        • 2.Sdc5#
      • 1...Bf4
        • 2.Sdc5#
      • 1...Be5
        • 2.Sdc5#
      • 1...Bb6
        • 2.Sdc5#
      • 1...Bd6
        • 2.Sdc5#
      • 1...Bb8
        • 2.Sdc5#
      • 1...Bd8
        • 2.Sdc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 22
    • REMOVED MATES = 0
  • Sets
    • K(b);P_SPINB(a),S_FLIGHT::P=S
    • K(b);P_SPINQ(c),S_FLIGHT::P=S
    • Q(c);OGATE,P_PINR(K),XR(L)::PXQ(c)=Q
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(b);P_SPINB(a),S_FLIGHT::P=S
      • Refutation
        • Q(c);XS(A)
    • Try
      • R(K);CHECK,XB(a)
      • Refutation
        • K(b);P-FLIGHT,XR(K)
    • Try
      • R(L);CHECK,XQ(c)
      • Refutation
        • K(b);P-FLIGHT,XR(L)
    • Try
      • P(H);CHECK
      • Vars
        • K(b);P_SPINQ(c),S_FLIGHT::P=S
      • Refutation
        • B(a);XS(H)
    • Try
      • P(I);CHECK
      • Vars
        • K(b);P_SPINB(a),S_FLIGHT::P=S
      • Refutation
        • Q(c);XS(I)
  • Actual
    • Q(G);
    • Vars
      • K(b);P_SPINB(a),S_FLIGHT::P=S
      • K(b);P_SPINQ(c),S_FLIGHT::P=S
      • Q(c);P_PINP(H),XS(C)::QAR(G)+S(A),DCHECK
      • Q(c);XP(I)::QAR(G)+S(A),DCHECK
      • Q(c);OGATE,P_PINR(K),XR(L)::PXQ(c)=Q
      • B(a);XP(E)::QAR(G)+S(A),DCHECK
      • Q(c);P_PINP(E)::QAR(G)+S(A),DCHECK
      • Q(c);::QAR(G)+S(A),DCHECK
      • Q(c);::S(A)
      • Q(c);P_PINR(K)::QAR(G)+S(A),DCHECK
      • Q(c);::QAR(G)+S(A),DCHECK,XQ(c)
      • B(a);::QAR(G)+S(A),DCHECK
      • B(a);::S(A)
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