MESON Chess Problem Database

Problem Display
PID: 147065 (2b4Q/3p2R1/nK1B3R/pppk1pp1/1qrP3p/3P4/5P2/8 w - - 0 1)

Grudzinski, Henryk

Australian Chess Problem Magazine, 1996

2b4Q/3p2R1/nK1B3R/pppk1pp1/1qrP3p/3P4/5P2/8

#2

8 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd4
      • 2.Qg8#
    • 1...cxd4
      • 2.Qg8#
    • 1...f4
      • 2.Rxg5#
  • Tries
    • 1.Bg3?
      • threat
        • 2.Rd6#
      • 1...Kxd4
        • 2.Rxd7#
      • 1...cxd4
        • 2.Qg8#
      • 1...f4
        • 2.Rxg5#
      • 1...d6
        • 2.Rxd6#
      • 1...hxg3!
    • 1.Bf4?
      • threat
        • 2.Rd6#
      • 1...Kxd4
        • 2.Rxd7#
      • 1...cxd4
        • 2.Qg8#
      • 1...d6
        • 2.Rxd6#
      • 1...gxf4!
    • 1.Bc7?
      • threat
        • 2.Rd6#
      • 1...Kxd4
        • 2.Rxd7#
      • 1...Rxd4
        • 2.Qg8#
      • 1...cxd4
        • 2.Qg8#
      • 1...d6
        • 2.Rxd6#
      • 1...Sxc7!
    • 1.Rf7?
      • threat
        • 2.Rxf5#
        • 2.Qe5#
      • 1...f4
        • 2.Rf5#
        • 2.Qe5#
      • 1...Qe1!
  • Keys
    • 1.Bh2!
      • threat
        • 2.Rd6#
      • 1...Kxd4
        • 2.Rxd7#
      • 1...cxd4
        • 2.Qg8#
      • 1...f4
        • 2.Rxg5#
      • 1...d6
        • 2.Rxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(b);SBLOCK,XP(C)::QAB(H)
    • P(f);SBLOCK,XP(C)::QAB(H)
    • P(h);OGATEB::R(G),XP(i)
  • Tries
    • Try
      • B(E);
      • Threat
        • R1(F)
      • Vars
        • K(g);P-FLIGHT,XP(C)::QAB(H)+R(G),DCHECK,XP(k)
        • P(f);SBLOCK,XP(C)::QAB(H)
        • P(h);OGATEB::R(G),XP(i)
        • P(k);::R1(F),XP(k)
      • Refutation
        • P(c);XB(E)
    • Try
      • B(E);
      • Threat
        • R1(F)
      • Vars
        • K(g);P-FLIGHT,XP(C)::QAB(H)+R(G),DCHECK,XP(k)
        • P(f);SBLOCK,XP(C)::QAB(H)
        • P(k);::R1(F),XP(k)
      • Refutation
        • P(i);XB(E)
    • Try
      • B(E);
      • Threat
        • R1(F)
      • Vars
        • K(g);P-FLIGHT,XP(C)::QAB(H)+R(G),DCHECK,XP(k)
        • R(b);SBLOCK,XP(C)::QAB(H)
        • P(f);SBLOCK,XP(C)::QAB(H)
        • P(k);::R1(F),XP(k)
      • Refutation
        • S(j);XB(E)
    • Try
      • R(G);
      • Threat
        • DUALS(2)
      • Refutation
        • Q(a);
  • Actual
    • B(E);
    • Threat
      • R1(F)
    • Vars
      • K(g);P-FLIGHT,XP(C)::QAB(H)+R(G),DCHECK,XP(k)
      • P(f);SBLOCK,XP(C)::QAB(H)
      • P(h);OGATEB::R(G),XP(i)
      • P(k);::R1(F),XP(k)
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