MESON Chess Problem Database

Problem Display
PID: 134271 (QN6/7P/1K2R1b1/1prp1p2/3k4/6Rr/1pP5/1n3BN1 w - - 0 1)

Labai, Zoltan

Taraba, Jozef

3rd Prize, Ahues-60 JT, 1982

QN6/7P/1K2R1b1/1prp1p2/3k4/6Rr/1pP5/1n3BN1

#2

9 + 9

14580 Chess Compositions (Taraba) 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg3
      • 2.h8Q#
      • 2.h8B#
    • 1...Rc4
      • 2.Se2#
    • 1...Rc6+
      • 2.Sxc6#
    • 1...Bh5
      • 2.h8Q#
      • 2.h8B#
    • 1...Sc3
      • 2.Sf3#
  • Tries
    • 1.Qxd5+?
      • 1...Rxd5
        • 2.Sc6#
      • 1...Kxd5!
    • 1.Qa2?
      • threat
        • 2.Se2#
      • 1...Rc6+
        • 2.Sxc6#
      • 1...Rh2
        • 2.Rd3#
      • 1...Bh5
        • 2.h8Q#
        • 2.h8B#
      • 1...Sc3
        • 2.Sf3#
      • 1...Rxc2!
    • 1.Qa5?
      • threat
        • 2.Sf3#
      • 1...Rc6+
        • 2.Sxc6#
      • 1...Rxg3
        • 2.h8Q#
        • 2.h8B#
      • 1...Bh5
        • 2.h8Q#
        • 2.h8B#
      • 1...Sd2
        • 2.Qxd2#
      • 1...b4
        • 2.Qxc5#
      • 1...Rc3!
    • 1.c3+?
      • 1...Sxc3
        • 2.Sf3#
      • 1...Rxc3!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Qxc5#
      • 1...Rxc6+
        • 2.Sxc6#
      • 1...Rxc2
        • 2.Sf3#
      • 1...Rc3
        • 2.Se2#
      • 1...Rc4
        • 2.Se2#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(c);N_GUARD,XR(D)::P=Q
    • R(f);SBLOCK::S(B)
    • R(f);CHECK,N_GUARD::S(I),XR(f)
    • B(i);S_CUTR(c)::P=Q
    • S(a);SBLOCK::S(B)
  • Tries
    • Try
      • Q(H);CHECK,XP(g)
      • Vars
        • R(f);SBLOCK,XQ(H)::S(I)
      • Refutation
        • K(d);P-FLIGHT,XQ(H)
    • Try
      • Q(H);
      • Threat
        • S(B)
      • Vars
        • R(f);CHECK,N_GUARD::S(I),XR(f)
        • R(c);N_GUARD::R1(D)
        • B(i);S_CUTR(c)::P=Q
        • S(a);SBLOCK::S(B)
      • Refutation
        • R(f);XP(C)
    • Try
      • Q(H);
      • Threat
        • S(B)
      • Vars
        • R(f);CHECK,N_GUARD::S(I),XR(f)
        • R(c);N_GUARD,XR(D)::P=Q
        • B(i);S_CUTR(c)::P=Q
        • S(a);N_GUARD::QAR2(H),XS(a)
        • P(e);OGATE::QAB1(H),XR(f)
      • Refutation
        • R(f);
    • Try
      • P(C);CHECK
      • Vars
        • S(a);SBLOCK,XP(C)::S(B)
      • Refutation
        • R(f);XP(C)
  • Actual
    • Q(H);
    • Threat
      • QAB1(H),XR(f)
    • Vars
      • R(f);CHECK,XQ(H)::S(I),XR(f)
      • R(f);XP(C)::S(B)
      • R(f);::S(B)
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