MESON Chess Problem Database

Problem Display
PID: 92209 (1q1n4/bp6/r6p/1NBP1PPK/p3k1NR/6P1/2RP4/1Q1B3b w - - 0 1)

Bakcsi, Gyorgy

Schweizerische Schachzeitung, 1963

1q1n4/bp6/r6p/1NBP1PPK/p3k1NR/6P1/2RP4/1Q1B3b

#2

13 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Sf2#
    • 1...Bxc5
      • 2.Rxc5#
  • Tries
    • 1.Se3+?
      • 1...Kd3
        • 2.Ra2#
        • 2.Rb2#
        • 2.Rd4#
      • 1...Ke5
        • 2.Qa1#
        • 2.Qb2#
        • 2.d4#
      • 1...Qf4!
    • 1.Sc3+?
      • 1...Kd3
        • 2.Sf2#
        • 2.Be2#
        • 2.Qb5#
      • 1...Kxf5!
    • 1.Bd4?
      • threat
        • 2.Rc5#
      • 1...Kd3
        • 2.Sf2#
      • 1...Kxd5
        • 2.Se3#
      • 1...Kxf5
        • 2.Se3#
      • 1...Bc5
        • 2.Rxc5#
      • 1...Qxg3!
    • 1.d3+?
      • 1...Kxd3
        • 2.Sf2#
      • 1...Kxf5
        • 2.Sd4#
      • 1...Kxd5!
  • Keys
    • 1.Bd6!
      • threat
        • 2.Rc5#
      • 1...Kd3
        • 2.Se5#
      • 1...Kxd5
        • 2.Sf6#
      • 1...Kxf5
        • 2.Sxh6#
      • 1...Bc5
        • 2.Rxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::S(F)
    • B(f);OGATE,XB(I)::QAB(A)+R(C),XB(f)
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • Q(h);P_SPINQ(h)
    • Try
      • S(H);CHECK
      • Refutation
        • K(c);S_FLIGHT,XP(K)
    • Try
      • B(I);
      • Threat
        • QAB(A)+R(C)
      • Vars
        • K(c);S_FLIGHT::S(F)
        • K(c);S_FLIGHT,XP(J)::S(F)
        • K(c);S_FLIGHT,XP(K)::S(F)
        • B(f);::QAB(A)+R(C),XB(f)
      • Refutation
        • Q(h);XP(E)
    • Try
      • P(D);CHECK
      • Vars
        • K(c);S_FLIGHT,XP(D)::S(F)
        • K(c);S_FLIGHT,XP(K)::S(H)
      • Refutation
        • K(c);S_FLIGHT,XP(J)
  • Actual
    • B(I);
    • Threat
      • QAB(A)+R(C)
    • Vars
      • K(c);S_FLIGHT::S(F)
      • K(c);S_FLIGHT,XP(J)::S(F)
      • K(c);S_FLIGHT,XP(K)::S(F),XP(e)
      • B(f);::QAB(A)+R(C),XB(f)
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