MESON Chess Problem Database

Problem Display
PID: 237378 (B2B2N1/1R3KR1/3PQ1pN/7n/n1p2k1p/5pq1/7P/8 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Schach-Aktiv, 2011

B2B2N1/1R3KR1/3PQ1pN/7n/n1p2k1p/5pq1/7P/8

#2

10 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...c3
      • 2.Rb4#
  • Tries
    • 1.Bg5+?
      • 1...Kxg5
        • 2.Qf5#
      • 1...Qxg5!
    • 1.Rb3?
      • threat
        • 2.Qe3#
        • 2.Qe4#
      • 1...Qxh2
        • 2.Rxf3#
      • 1...cxb3
        • 2.Qe4#
      • 1...Sf6
        • 2.Qe3#
        • 2.Qxf6#
      • 1...Qe1
        • 2.Rxf3#
      • 1...Qf2
        • 2.Qe4#
      • 1...Qg1
        • 2.Rxf3#
        • 2.Qe4#
      • 1...Sc5
        • 2.Qe3#
      • 1...f2
        • 2.Qe4#
      • 1...c3
        • 2.Rb4#
        • 2.Qe4#
      • 1...Sc3!
    • 1.Rb5?
      • threat
        • 2.Qe4#
        • 2.Qe5#
      • 1...Qxh2
        • 2.Qe5#
      • 1...Qe1
        • 2.Bg5#
      • 1...Qg5
        • 2.Bxg5#
        • 2.Qe4#
      • 1...Sc3
        • 2.Qe5#
      • 1...Sf6
        • 2.Qe5#
      • 1...Sc5!
  • Keys
    • 1.Re7!
      • threat
        • 2.Qe3#
        • 2.Qe5#
      • 1...Kg5
        • 2.Qf5#
      • 1...Qxh2
        • 2.Qg4#
        • 2.Qe5#
      • 1...Qe1
        • 2.Qg4#
      • 1...Qf2
        • 2.Qg4#
        • 2.Qe5#
      • 1...Qg1
        • 2.Qe5#
      • 1...Qg5
        • 2.Qxc4#
        • 2.Qe3#
        • 2.Qe4#
      • 1...f2
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(d);OGATEB::R(E)
  • Tries
    • Try
      • B(I);CHECK
      • Vars
        • K(e);P_SPINP(h),S_FLIGHT,XB(I)::QAR1(C)
      • Refutation
        • Q(b);XB(I)
    • Try
      • R(E);
      • Threat
        • DUALS(2)
      • Vars
        • Q(b);N_GUARD,XP(A)::R1(E),XP(a)
        • P(d);XR(E)::QAR1(C)
        • Q(b);N_GUARD::R1(E),XP(a)
        • Q(b);::QAR1(C)
        • S(c);::QAB1(C)
        • P(a);::QAR1(C)
      • Refutation
        • S(c);
    • Try
      • R(E);
      • Threat
        • DUALS(2)
      • Vars
        • Q(b);XP(A)::QAB1(C)
        • Q(b);N_GUARD::B(I)
        • S(c);::QAB1(C)
        • S(g);::QAB1(C)
      • Refutation
        • S(c);
  • Actual
    • R(E);
    • Threat
      • DUALS(2)
    • Vars
      • K(e);P_SPINP(h),S_FLIGHT::QAR1(C)
      • Q(b);N_GUARD::QAR1(C)
      • Q(b);::QAB1(C)
      • P(a);::QAB1(C)
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