MESON Chess Problem Database

Problem Display
PID: 7674 (5bn1/3ppQ2/Kpk2pB1/p2R2N1/2rp1B2/n2N3b/2R3p1/8 w - - 0 1)

Gamza, Grigory Stepanovich

Garaj, Ivan

3rd Prize, Slovensky Dennik, 1992

5bn1/3ppQ2/Kpk2pB1/p2R2N1/2rp1B2/n2N3b/2R3p1/8

#2

8 + 13

5416 FIDE Album (1992-1994) (Annexe) 2003

SOLUTION

  • SOUND
  • Sets
    • 1...Sb1
      • 2.Rxc4#
    • 1...Sb5
      • 2.Rxc4#
    • 1...a4
      • 2.Sb4#
    • 1...e6
      • 2.Qxd7#
  • Tries
    • 1.Be4?
      • threat
        • 2.Rc5#
      • 1...e5
        • 2.Rxd7#
      • 1...Rc5
        • 2.Rdxc5#
      • 1...d6!
    • 1.Qe8?
      • threat
        • 2.Qa8#
      • 1...Kxd5
        • 2.Be4#
      • 1...e5!
    • 1.Qxf8?
      • threat
        • 2.Qa8#
      • 1...Kxd5
        • 2.Be4#
      • 1...e5
        • 2.Qd6#
      • 1...d6!
  • Keys
    • 1.Rxd7!
      • threat
        • 2.Rc7#
        • 2.Qd5#
      • 1...Kxd7
        • 2.Qe8#
      • 1...Bxd7
        • 2.Be4#
      • 1...Be6
        • 2.Qxe6#
      • 1...Sb5
        • 2.Qd5#
      • 1...e5
        • 2.Be4#
        • 2.Qd5#
      • 1...e6
        • 2.Be4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(b);N_GUARD::R(A),XR(d)
    • P(f);N_GUARD::S(B)
    • P(k);OGATE::QAB1(H),XP(j)
  • Tries
    • Try
      • B(G);
      • Threat
        • B(G)+R(D),DCHECK
      • Vars
        • P(k);::B(G)+R(D),XP(j)
        • R(d);::B(G)+R(D),DCHECK,XR(d)
      • Refutation
        • P(j);
    • Try
      • Q(H);P_PINP(j)
      • Threat
        • QAB(H)
      • Vars
        • K(h);N_SPINP(j),N_SPINR(d),OGATEB,S_FLIGHT,XR(D)::B(G)
      • Refutation
        • P(k);
    • Try
      • Q(H);XB(l)
      • Threat
        • QAB(H)
      • Vars
        • K(h);N_SPINR(d),OGATEB,S_FLIGHT,XR(D)::B(G)
        • P(k);OGATE::QAR1(H)
      • Refutation
        • P(j);
  • Actual
    • R(D);XP(j)
    • Threat
      • DUALS(2)
    • Vars
      • K(h);N_SPINR(d),OGATEB,P_SPINP(k),S_FLIGHT,XR(D)::QAB1(H)
      • B(c);SBLOCK,XR(D)::B(G)
      • B(c);N_GUARD::QAR2(H),XB(c)
      • S(b);::QAB1(H)
      • P(k);::B(G)
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