MESON Chess Problem Database

Problem Display
PID: 177816 (1B6/r2p4/3Pp3/2pPk1pr/2p1N1Kp/2P5/2NQ4/b3R3 w - - 0 1)

Svetilsky, Anatoly Volodimirovich

Sahs (Latvia), 1984

1B6/r2p4/3Pp3/2pPk1pr/2p1N1Kp/2P5/2NQ4/b3R3

#2

9 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rh6
      • 2.Qxg5#
    • 1...Rh7
      • 2.Qxg5#
    • 1...Rh8
      • 2.Qxg5#
  • Tries
    • 1.Kxh5?
      • threat
        • 2.Qxg5#
      • 1...Kf5
        • 2.Qxg5#
      • 1...g4
        • 2.Qg5#
      • 1...exd5!
    • 1.Se3?
      • threat
        • 2.Sxc4#
      • 1...Kxe4
        • 2.Sd1#
        • 2.Sf1#
        • 2.Sc2#
        • 2.Sg2#
        • 2.Sxc4#
        • 2.Sf5#
      • 1...exd5
        • 2.Qxd5#
      • 1...Ra4!
    • 1.Sb4?
      • threat
        • 2.Qh2#
      • 1...Bxc3
        • 2.Qxc3#
      • 1...cxb4
        • 2.Qd4#
      • 1...exd5
        • 2.Qxd5#
      • 1...Ra2!
    • 1.Qf2?
      • threat
        • 2.Sf6#
      • 1...Kxd5
        • 2.Qxc5#
      • 1...Bxc3
        • 2.Sxc3#
      • 1...Rc7!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Sf3#
      • 1...Kxd5
        • 2.Sf6#
      • 1...cxd4
        • 2.Qxd4#
      • 1...exd5
        • 2.Qh2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(g);N_GUARD::QAR2(C),XP(f)
  • Tries
    • Try
      • K(F);S_FLIGHT,XR(g)
      • Threat
        • QAR2(C),XP(f)
      • Vars
        • K(e);P-FLIGHT::QAR1(C),XP(f)
        • P(f);::QAR2(C)
      • Refutation
        • P(h);XP(G)
    • Try
      • S(B);
      • Threat
        • S(B),XP(b)
      • Vars
        • P(h);OGATE,XP(G)::QAR1(C),XP(h)
      • Refutation
        • R(i);
    • Try
      • S(B);
      • Threat
        • QAB(C)
      • Vars
        • B(a);OGATE,XP(D)::QAB(C),XB(a)
        • P(d);N_GUARD,XS(B)::QAB1(C)
        • P(h);OGATE,XP(G)::QAR1(C),XP(h)
      • Refutation
        • R(i);
    • Try
      • Q(C);
      • Threat
        • R(A)+S(E)
      • Vars
        • K(e);OGATEB,P-FLIGHT,XP(G)::QAR1(C),XP(d)
        • B(a);XP(D)::R(A)+S(E),XB(a)
      • Refutation
        • R(i);
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • K(e);P-FLIGHT,XP(G)::S(E)
      • P(d);OGATE,XS(B)::QAB1(C),XP(d)
      • P(h);SBLOCK,XP(G)::QAB(C)
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