MESON Chess Problem Database

Problem Display
PID: 144419 (8/1p5p/1B3NpP/5pR1/5P2/2pk4/Q3p1P1/4Kb1n w - - 0 1)

Bakay, Bela

Comm., Budapesti Sakkor, 1930-1931

8/1p5p/1B3NpP/5pR1/5P2/2pk4/Q3p1P1/4Kb1n

#2

8 + 9

38 Magyar Sakkvilag 1931

SOLUTION

  • SOUND
  • Sets
    • 1...Bxg2
      • 2.Qxe2#
    • 1...Sf2
      • 2.Rg3#
    • 1...Sg3
      • 2.Rxg3#
    • 1...c2
      • 2.Qb3#
  • Tries
    • 1.Rxf5?
      • threat
        • 2.Rd5#
      • 1...Bxg2
        • 2.Qxe2#
      • 1...c2
        • 2.Qb3#
      • 1...gxf5!
    • 1.Rxg6?
      • 1...Bxg2
        • 2.Qxe2#
      • 1...c2
        • 2.Qb3#
      • 1...Sf2
        • 2.Rg3#
      • 1...Sg3
        • 2.Rxg3#
      • 1...hxg6!
    • 1.Qb1+?
      • 1...c2
        • 2.Qb3#
      • 1...Kc4!
    • 1.Qb3?
      • 1...Sf2
        • 2.Rg3#
      • 1...Sg3
        • 2.Rxg3#
      • 1...Bxg2!
    • 1.Qa4?
      • 1...c2
        • 2.Qb3#
        • 2.Qd4#
      • 1...Sf2
        • 2.Rg3#
      • 1...Sg3
        • 2.Rxg3#
      • 1...Bxg2!
    • 1.g3?
      • 1...Sxg3
        • 2.Rxg3#
      • 1...c2
        • 2.Qb3#
      • 1...Bg2
        • 2.Qxe2#
      • 1...Bh3
        • 2.Qxe2#
      • 1...Sf2!
  • Keys
    • 1.Se4!
      • 1...Kxe4
        • 2.Qc4#
      • 1...Bxg2
        • 2.Qxe2#
      • 1...fxe4
        • 2.Rd5#
      • 1...Sf2
        • 2.Sxf2#
      • 1...Sg3
        • 2.Sf2#
      • 1...c2
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD,XP(C)::QAB1(B),XP(c)
    • S(b);N_GUARD::R(E)
    • S(b);N_GUARD::R(E),XS(b)
    • P(d);OGATEB::QAR2(B)
  • Tries
    • Try
      • R(E);XP(f)
      • Threat
        • R(E)
      • Vars
        • B(a);N_GUARD,XP(C)::QAB1(B),XP(c)
        • P(d);OGATEB::QAR2(B)
      • Refutation
        • P(g);XR(E)
    • Try
      • R(E);XP(g)
      • Vars
        • B(a);N_GUARD,XP(C)::QAB1(B),XP(c)
        • P(d);OGATEB::QAR2(B)
        • S(b);N_GUARD::R(E)
        • S(b);N_GUARD::R(E),XS(b)
      • Refutation
        • P(i);XR(E)
    • Try
      • Q(B);CHECK
      • Vars
        • P(d);OGATEB,P_SPINP(d)::QAR2(B)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(B);P_PINP(d)
      • Vars
        • S(b);N_GUARD::R(E)
        • S(b);N_GUARD::R(E),XS(b)
      • Refutation
        • B(a);XP(C)
    • Try
      • Q(B);
      • Vars
        • S(b);N_GUARD::R(E)
        • S(b);N_GUARD::R(E),XS(b)
      • Refutation
        • B(a);XP(C)
    • Try
      • P(C);
      • Vars
        • S(b);OGATE,XP(C)::R(E),XS(b)
        • P(d);OGATEB::QAR2(B)
        • B(a);N_GUARD::QAB1(B),XP(c)
      • Refutation
        • S(b);
  • Actual
    • S(G);
    • Vars
      • K(e);S_FLIGHT,XS(G)::QAR2(B)
      • B(a);N_GUARD,XP(C)::QAB1(B),XP(c)
      • P(f);OGATE,SBLOCK,XS(G)::R(E)
      • S(b);N_GUARD::S(G),XS(b)
      • S(b);N_GUARD::S(G)
      • P(d);SBLOCK::QAR2(B)
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