MESON Chess Problem Database

Problem Display
PID: 169993 (4n3/2r5/2pP1Pp1/3Nk3/2B1N3/4Q1K1/8/8 w - - 0 1)

Gonzales, Manuel

Enroque!!, 1947

4n3/2r5/2pP1Pp1/3Nk3/2B1N3/4Q1K1/8/8

#2

7 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sd2+?
      • 1...Kf5
        • 2.Bd3#
      • 1...Kxd6!
    • 1.Sf2+?
      • 1...Kf5
        • 2.Bd3#
      • 1...Kxd6!
    • 1.Sec3+?
      • 1...Kf5
        • 2.Bd3#
      • 1...Kxd6!
    • 1.Sc5+?
      • 1...Kf5
        • 2.Bd3#
        • 2.Qf4#
      • 1...Kxd6!
    • 1.Sg5+?
      • 1...Kf5
        • 2.Bd3#
        • 2.Qf4#
      • 1...Kxd6!
    • 1.Qf4+?
      • 1...Ke6
        • 2.Sb6#
      • 1...Kd4!
    • 1.Qg5+?
      • 1...Kxe4
        • 2.Qf4#
      • 1...Ke6
        • 2.Sb6#
      • 1...Kd4!
  • Keys
    • 1.Qc5!
      • threat
        • 2.Sdc3#
      • 1...Kxe4
        • 2.Sc3#
      • 1...Kf5
        • 2.Sdc3#
      • 1...Ke6
        • 2.Sb6#
      • 1...Sxf6
        • 2.Sdxf6#
      • 1...cxd5
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(a);P-FLIGHT::B(C)
      • Refutation
        • K(a);S_FLIGHT,XP(F)
    • Try
      • S(D);CHECK
      • Vars
        • K(a);P-FLIGHT::B(C)
      • Refutation
        • K(a);S_FLIGHT,XP(F)
    • Try
      • S(D);CHECK
      • Vars
        • K(a);P-FLIGHT::B(C)
      • Refutation
        • K(a);S_FLIGHT,XP(F)
    • Try
      • S(D);CHECK
      • Refutation
        • K(a);S_FLIGHT,XP(F)
    • Try
      • S(D);CHECK
      • Refutation
        • K(a);S_FLIGHT,XP(F)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::B(C)+S(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT,XS(D)::QAR1(A)
        • K(a);P-FLIGHT::B(C)+S(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAR(A)+S(E)
    • Vars
      • K(a);P-FLIGHT,XS(D)::S(E)
      • K(a);P-FLIGHT::QAR(A)+S(E)
      • K(a);P-FLIGHT::B(C)+S(E)
      • S(e);XP(G)::QAR(A)+S(E),XS(e)
      • P(b);OGATE,P_SPINP(b),XS(E)::QAR1(A),XP(b)
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