MESON Chess Problem Database

Problem Display
PID: 145594 (r2n2QK/1bR1pp2/1bP5/3kP1B1/7R/1n1N3B/1N1pP3/8 w - - 0 1)

Paluzie y Lucena, Jozefo

Good Companions (October), 1917

r2n2QK/1bR1pp2/1bP5/3kP1B1/7R/1n1N3B/1N1pP3/8

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Qxd8#
    • 1...Ra2
      • 2.Qxd8#
    • 1...Ra3
      • 2.Qxd8#
    • 1...Ra4
      • 2.Qxd8#
    • 1...Ra5
      • 2.Qxd8#
    • 1...Ra6
      • 2.Qxd8#
    • 1...Ra7
      • 2.Qxd8#
    • 1...Bd4
      • 2.e4#
    • 1...Sd4
      • 2.e4#
    • 1...Sxc6
      • 2.Rd7#
    • 1...Se6
      • 2.Bg2#
    • 1...e6
      • 2.Bg2#
  • Tries
    • 1.Sb4+?
      • 1...Kxe5
        • 2.Sc4#
      • 1...Kc5!
    • 1.Be3?
      • threat
        • 2.Qg2#
      • 1...Sxc6
        • 2.Rd7#
      • 1...Ra4
        • 2.Qxd8#
      • 1...Sc5
        • 2.Rd4#
      • 1...Se6
        • 2.Bg2#
      • 1...Sd4!
    • 1.Bh6?
      • threat
        • 2.Qg2#
      • 1...Sxc6
        • 2.Rd7#
      • 1...Ra4
        • 2.Qxd8#
      • 1...Sd4
        • 2.e4#
      • 1...Se6
        • 2.Bg2#
      • 1...Sc5!
    • 1.Bxe7?
      • threat
        • 2.Qg2#
      • 1...Sxc6
        • 2.Rd7#
      • 1...Ra4
        • 2.Qxd8#
      • 1...Sd4
        • 2.e4#
      • 1...Se6
        • 2.Bg2#
      • 1...Sc5!
  • Keys
    • 1.Bf6!
      • threat
        • 2.Qg2#
      • 1...Sxc6
        • 2.Rd7#
      • 1...Ra4
        • 2.Qxd8#
      • 1...Sd4
        • 2.e4#
      • 1...Sc5
        • 2.Sb4#
      • 1...Se6
        • 2.Bg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • R(h);N_GUARD::QAR(J),XS(i)
    • B(d);P_PINP(F),SBLOCK::P(B)
    • S(b);SBLOCK::P(B)
    • S(i);P_PINQ(J),SBLOCK,XP(H)::R(I)
    • S(i);N_SPINP(g),P_PINQ(J),SBLOCK::B(D)
    • P(f);N_SPINP(g),SBLOCK::B(D)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(c);N_SPINP(g),P-FLIGHT,XP(F)::S(A)
      • Refutation
        • K(c);N_SPINP(g),P-FLIGHT
    • Try
      • B(G);
      • Threat
        • QAB(J)
      • Vars
        • S(i);P_PINQ(J),SBLOCK,XP(H)::R(I)
        • R(h);N_GUARD::QAR(J),XS(i)
        • S(b);N_GUARD,S_CUTB(d)::R1(E)
        • S(i);N_SPINP(g),P_PINQ(J),SBLOCK::B(D)
      • Refutation
        • S(b);
    • Try
      • B(G);
      • Threat
        • QAB(J)
      • Vars
        • S(i);P_PINQ(J),SBLOCK,XP(H)::R(I)
        • R(h);N_GUARD::QAR(J),XS(i)
        • S(b);SBLOCK::P(B)
        • S(i);N_SPINP(g),P_PINQ(J),SBLOCK::B(D)
      • Refutation
        • S(b);
    • Try
      • B(G);XP(f)
      • Threat
        • QAB(J)
      • Vars
        • S(i);P_PINQ(J),SBLOCK,XP(H)::R(I)
        • R(h);N_GUARD::QAR(J),XS(i)
        • S(b);SBLOCK::P(B)
        • S(i);N_SPINP(g),P_PINQ(J),SBLOCK::B(D)
      • Refutation
        • S(b);
  • Actual
    • B(G);
    • Threat
      • QAB(J)
    • Vars
      • S(i);P_PINQ(J),SBLOCK,XP(H)::R(I)
      • R(h);N_GUARD::QAR(J),XS(i)
      • S(b);SBLOCK::P(B)
      • S(b);SBLOCK::S(C)
      • S(i);N_SPINP(g),P_PINQ(J),SBLOCK::B(D)
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