MESON Chess Problem Database

Problem Display
PID: 177801 (3K2B1/3p4/3p2Rp/Bpk1r1Rr/1N1bpQ2/5N1p/5n2/3n4 w - - 0 1)

Svetilsky, Anatoly Volodimirovich

Sahs (Latvia), 1985

3K2B1/3p4/3p2Rp/Bpk1r1Rr/1N1bpQ2/5N1p/5n2/3n4

#2

8 + 12

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rf5
      • 2.Qxd6#
    • 1...Rexg5
      • 2.Qxd6#
    • 1...e3
      • 2.Qxd4#
  • Tries
    • 1.Kxd7?
      • threat
        • 2.Sa6#
      • 1...d5
        • 2.Rc6#
      • 1...Rd5!
    • 1.Qxe5+?
      • 1...dxe5
        • 2.Sa6#
      • 1...d5
        • 2.Qxd4#
        • 2.Qc7#
        • 2.Qxd5#
      • 1...Bxe5!
    • 1.Qxe4?
      • threat
        • 2.Sa6#
        • 2.Qxd4#
      • 1...Rd5
        • 2.Qxd5#
        • 2.Qxd4#
      • 1...d5
        • 2.Qxd4#
      • 1...Rh4
        • 2.Sa6#
      • 1...Ba1
        • 2.Sa6#
      • 1...Bb2
        • 2.Sa6#
      • 1...Bc3
        • 2.Sa6#
      • 1...Be3
        • 2.Sa6#
      • 1...Sxe4!
    • 1.Qf6?
      • threat
        • 2.Qxd6#
      • 1...Rd5
        • 2.Qxd4#
      • 1...d5!
  • Keys
    • 1.Sd2!
      • threat
        • 2.Sb3#
      • 1...Rd5
        • 2.Qxd6#
      • 1...d5
        • 2.Sa6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(h);OGATE::QAB1(C),XP(j)
    • R(h);N_SPINR(h),OGATE,XR(E)::QAB1(C),XP(j)
    • P(e);OGATE::QAB1(C),XB(d)
  • Tries
    • Try
      • K(G);P-FLIGHT,XP(l)
      • Threat
        • S(B)
      • Vars
        • P(j);N_SPINR(h),OGATE::R1(F)
      • Refutation
        • R(h);
    • Try
      • Q(C);CHECK,XR(h)
      • Vars
        • P(j);P_SPINP(j),XQ(C)::S(B)
      • Refutation
        • B(d);P_SPINB(d),XQ(C)
    • Try
      • Q(C);XP(e)
      • Threat
        • DUALS(2)
      • Vars
        • P(j);N_SPINR(h)::QAB1(C),XB(d)
        • R(i);::S(B)
        • B(d);::S(B)
      • Refutation
        • S(b);XQ(C)
    • Try
      • Q(C);
      • Threat
        • QAB1(C),XP(j)
      • Vars
        • R(h);OGATE::QAB1(C),XB(d)
      • Refutation
        • P(j);N_SPINR(h)
  • Actual
    • S(A);
    • Threat
      • S(A)
    • Vars
      • R(h);OGATE::QAB1(C),XP(j)
      • P(j);N_SPINR(h)::S(B)
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