MESON Chess Problem Database

Problem Display
PID: 268145 (2R4B/6RB/3K4/4p3/2pkN3/1b6/nNprpP1b/Q7 w - - 0 1)

Puig y Puig, Esteban

El Diluvio, 1933

2R4B/6RB/3K4/4p3/2pkN3/1b6/nNprpP1b/Q7

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Ba4
      • 2.Rxc4#
    • 1...Sc1
      • 2.Qa7#
    • 1...Sc3
      • 2.Qa7#
    • 1...Sb4
      • 2.Qa7#
  • Tries
    • 1.Ke6?
      • threat
        • 2.Rd7#
        • 2.Rd8#
      • 1...Ba4
        • 2.Rxc4#
      • 1...Sc3
        • 2.Qa7#
      • 1...Sb4
        • 2.Qa7#
      • 1...c3+!
    • 1.Sd1+?
      • 1...Kd3
        • 2.Sc5#
      • 1...Sc3
        • 2.Qxc3#
      • 1...c3!
    • 1.Sd3+?
      • 1...Kxd3
        • 2.Sc5#
      • 1...Sc3
        • 2.Qxc3#
      • 1...c3!
    • 1.Sa4+?
      • 1...Kd3
        • 2.Sac5#
        • 2.Sec5#
      • 1...Sc3
        • 2.Qxc3#
      • 1...c3!
    • 1.Sxc4+?
      • 1...Sc3
        • 2.Qxc3#
      • 1...Kd3!
    • 1.Rd7?
      • threat
        • 2.Kc6#
        • 2.Ke6#
        • 2.Kc7#
        • 2.Ke7#
      • 1...Ba4
        • 2.Rxc4#
      • 1...Sc3
        • 2.Qa7#
      • 1...Sb4
        • 2.Qa7#
      • 1...c3!
    • 1.Qxa2?
      • threat
        • 2.Qa7#
      • 1...Ba4
        • 2.Rxc4#
        • 2.Qxc4#
      • 1...Bxa2!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Sb5#
      • 1...Kxc3+
        • 2.Sd3#
      • 1...e4+
        • 2.Rg3#
      • 1...Sxc3
        • 2.Qa7#
      • 1...Ba4
        • 2.Rxc4#

This is a version of 268144

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(f);N_GUARD::R1(H),XP(g)
    • S(a);OGATE::QAB(A)
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • B(f);N_GUARD::R1(H),XP(g)
        • S(a);OGATE::QAB(A)
      • Refutation
        • P(g);CHECK
    • Try
      • S(B);CHECK
      • Vars
        • K(h);P-FLIGHT::B(G)+S(D),DCHECK
        • S(a);N_GUARD,P_SPINS(a)::QAB1(A),XS(a)
      • Refutation
        • P(g);P_SPINP(g)
    • Try
      • S(B);CHECK
      • Vars
        • K(h);P-FLIGHT,XS(B)::B(G)+S(D),DCHECK
        • S(a);N_GUARD,P_SPINS(a)::QAB1(A),XS(a)
      • Refutation
        • P(g);P_SPINP(g)
    • Try
      • S(B);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAB1(A),XS(a)
      • Refutation
        • P(g);P_SPINP(g)
    • Try
      • S(B);CHECK,XP(g)
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAB1(A),XS(a)
      • Refutation
        • K(h);P-FLIGHT
    • Try
      • R(F);P_PINP(i)
      • Threat
        • DUALS(4)
      • Vars
        • B(f);N_GUARD::R1(H),XP(g)
        • S(a);OGATE::QAB(A)
      • Refutation
        • P(g);
    • Try
      • Q(A);XS(a)
      • Threat
        • QAB(A)
      • Refutation
        • B(f);XQ(A)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(h);CHECK,P_SPINP(g),S_FLIGHT,XS(D)::QAB(A)+S(B)
      • P(i);CHECK,OGATEB::B(I)+R(F)
      • S(a);OGATE,SBLOCK,XS(D)::QAB(A)
      • B(f);N_GUARD::R1(H),XP(g)
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