MESON Chess Problem Database

Problem Display
PID: 181939 (8/1B1p1p2/3R1Rp1/1P2kP2/K2N4/pP1p3b/1BP1r1pq/5Qr1 w - - 0 1)

Kopyl, Valery Volodimirovich

Krizhanivsky, Vasil Viktorovich

4/6 Place, 10. WCCT, 2016-2017

8/1B1p1p2/3R1Rp1/1P2kP2/K2N4/pP1p3b/1BP1r1pq/5Qr1

#2

11 + 11

16140 10. WCCT Award 2017

SOLUTION

  • SOUND
  • Sets
    • 1...a2
      • 2.Sxe2#
  • Tries
    • 1.Rd5+?
      • 1...Ke4
        • 2.Qf3#
      • 1...Kxf6!
    • 1.Qf3?
      • threat
        • 2.Sc6#
      • 1...Qf4
        • 2.Qd5#
      • 1...Re4
        • 2.Qxe4#
      • 1...axb2!
    • 1.fxg6?
      • threat
        • 2.Sf3#
      • 1...Qf4
        • 2.Qxf4#
      • 1...Re4
        • 2.Rd5#
      • 1...Bf5
        • 2.Qxf5#
      • 1...Be6!
  • Keys
    • 1.Kxa3!
      • threat
        • 2.Sxe2#
      • 1...Rxc2
        • 2.Sxc2#
      • 1...Rf2
        • 2.Se2#
      • 1...Qf4
        • 2.Sf3#
      • 1...Re1
        • 2.Se2#
      • 1...Rd2
        • 2.Se2#
      • 1...Re3
        • 2.Se2#
      • 1...Re4
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • P(e);N_GUARD::B(B)+S(F),XR(b)
  • Tries
    • Try
      • R(I);CHECK
      • Vars
        • K(h);P-FLIGHT::QAB1(A)
      • Refutation
        • K(h);S_FLIGHT,XR(J)
    • Try
      • Q(A);
      • Threat
        • B(B)+S(F),DCHECK
      • Vars
        • Q(d);P_PINS(F),SBLOCK::QAR1(A)
        • R(b);N_GUARD,P_PINS(F)::QAR1(A),XR(b)
      • Refutation
        • P(e);XB(B)
    • Try
      • P(H);XP(i)
      • Threat
        • B(B)+S(F),DCHECK
      • Vars
        • Q(d);N_GUARD,P_PINS(F)::QAB1(A),XQ(d)
        • R(b);P_PINS(F),SBLOCK::R1(I)
        • B(g);N_GUARD::QAR1(A),XB(g)
      • Refutation
        • B(g);
  • Actual
    • K(E);P-FLIGHT,XP(e)
    • Threat
      • B(B)+S(F),XR(b)
    • Vars
      • R(b);XP(C)::B(B)+S(F),XR(b)
      • R(b);::B(B)+S(F)
      • Q(d);SBLOCK::B(B)+S(F),DCHECK
      • R(b);SBLOCK::B(B)+S(F),DCHECK
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