MESON Chess Problem Database

Problem Display
PID: 47864 (RNR1Q3/3BK3/1p1N4/8/1k6/1p6/1n6/1n6 w - - 0 1)

Rezinkin, Valery Ivanovich

Uralski Problemist, 2003

RNR1Q3/3BK3/1p1N4/8/1k6/1p6/1n6/1n6

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Ra4#
      • 2.Rc4#
    • 1...Sd3
      • 2.Ra4#
      • 2.Rc4#
    • 1...Sa4
      • 2.Rxa4#
    • 1...Sc4
      • 2.Rxc4#
  • Tries
    • 1.Sa6+?
      • 1...Ka5
        • 2.Sb7#
      • 1...Ka3!
    • 1.Sc6+?
      • 1...Kc5
        • 2.Qh5#
      • 1...Kc3!
    • 1.Ra1?
      • threat
        • 2.Sa6#
      • 1...Sa4
        • 2.Rxa4#
      • 1...Sc4
        • 2.Rxc4#
      • 1...Sa3!
    • 1.Rc1?
      • threat
        • 2.Sc6#
      • 1...Sa4
        • 2.Rxa4#
      • 1...Sc4
        • 2.Rxc4#
      • 1...Sc3!
    • 1.Qh8?
      • 1...Sa4
        • 2.Rxa4#
      • 1...Sd2
        • 2.Qc3#
      • 1...Sa3
        • 2.Qc3#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Sd1
        • 2.Ra4#
        • 2.Rc4#
        • 2.Qd4#
        • 2.Qh4#
      • 1...Sd3
        • 2.Ra4#
        • 2.Rc4#
        • 2.Qd4#
      • 1...Sc4
        • 2.Ra4#
        • 2.Rxc4#
      • 1...b5!
  • Keys
    • 1.Qh5!
      • threat
        • 2.Qb5#
      • 1...Sa4
        • 2.Rxa4#
      • 1...Sc4
        • 2.Rxc4#
      • 1...Sa3
        • 2.Sa6#
      • 1...Sc3
        • 2.Sc6#
      • 1...b5
        • 2.Qxb5#
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD::R1(D),XS(b)
    • S(b);N_GUARD::R1(F),XS(b)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(d);S_FLIGHT::S(A)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(d);S_FLIGHT::QAR(G)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • R(D);
      • Threat
        • S(E)
      • Vars
        • S(b);N_GUARD::R1(D),XS(b)
        • S(b);N_GUARD::R1(F),XS(b)
      • Refutation
        • S(a);
    • Try
      • R(F);
      • Threat
        • S(E)
      • Vars
        • S(b);N_GUARD::R1(D),XS(b)
        • S(b);N_GUARD::R1(F),XS(b)
      • Refutation
        • S(a);
    • Try
      • Q(G);
      • Vars
        • S(b);N_GUARD::R1(D),XS(b)
        • S(a);N_GUARD::QAB1(G)
        • S(a);N_GUARD::QAB1(G),XS(a)
      • Refutation
        • P(e);
  • Actual
    • Q(G);
    • Threat
      • QAR1(G)
    • Vars
      • S(b);N_GUARD::R1(D),XS(b)
      • S(b);N_GUARD::R1(F),XS(b)
      • S(a);SBLOCK::S(E)
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