MESON Chess Problem Database

Problem Display
PID: 180269 (kB6/1nP5/B7/p2R1K2/4N3/8/8/7Q w - - 0 1)

Lider, Valentin Viktorovich

Land og Folk, 0000

kB6/1nP5/B7/p2R1K2/4N3/8/8/7Q

#2

7 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sd2?
      • 1...Sd6+
        • 2.Rxd6#
      • 1...Sc5
        • 2.Rxc5#
      • 1...Sd8
        • 2.Rxd8#
      • 1...a4!
    • 1.Sf2?
      • 1...Sd6+
        • 2.Rxd6#
      • 1...Sc5
        • 2.Rxc5#
      • 1...Sd8
        • 2.Rxd8#
      • 1...a4!
    • 1.Sc3?
      • 1...Sd6+
        • 2.Rxd6#
      • 1...Sc5
        • 2.Rxc5#
      • 1...Sd8
        • 2.Rxd8#
      • 1...a4!
    • 1.Sg3?
      • 1...Sd6+
        • 2.Rxd6#
      • 1...Sc5
        • 2.Rxc5#
      • 1...Sd8
        • 2.Rxd8#
      • 1...a4!
    • 1.Sg5?
      • 1...Sd6+
        • 2.Rxd6#
      • 1...Sc5
        • 2.Rxc5#
      • 1...Sd8
        • 2.Rxd8#
      • 1...a4!
    • 1.Sd6?
      • threat
        • 2.Bxb7#
      • 1...Sxd6+
        • 2.Rxd6#
      • 1...Sc5
        • 2.Rxc5#
      • 1...Sd8!
    • 1.Sf6?
      • 1...Sd6+
        • 2.Rxd6#
      • 1...Sc5
        • 2.Rxc5#
      • 1...Sd8
        • 2.Rxd8#
      • 1...a4!
    • 1.Rxa5?
      • 1...Sd6+
        • 2.Sxd6#
      • 1...Sc5
        • 2.Sxc5#
      • 1...Sd8
        • 2.Bc8#
      • 1...Sxa5!
    • 1.Rb5?
      • threat
        • 2.Bxb7#
      • 1...Sd6+
        • 2.Sxd6#
      • 1...Sc5
        • 2.Sxc5#
      • 1...Sd8!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Bxb7#
      • 1...Sd6+
        • 2.Rxd6#
      • 1...Sxc5
        • 2.Rxc5#
      • 1...Sd8
        • 2.Rxd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Vars
        • S(b);CHECK,OGATEB::QAB(A)+R(C),XS(b)
        • S(b);OGATEB::QAB(A)+R(C),XS(b)
      • Refutation
        • P(a);
    • Try
      • S(B);
      • Vars
        • S(b);CHECK,OGATEB::QAB(A)+R(C),XS(b)
        • S(b);OGATEB::QAB(A)+R(C),XS(b)
      • Refutation
        • P(a);
    • Try
      • S(B);
      • Vars
        • S(b);CHECK,OGATEB::QAB(A)+R(C),XS(b)
        • S(b);OGATEB::QAB(A)+R(C),XS(b)
      • Refutation
        • P(a);
    • Try
      • S(B);
      • Vars
        • S(b);CHECK,OGATEB::QAB(A)+R(C),XS(b)
        • S(b);OGATEB::QAB(A)+R(C),XS(b)
      • Refutation
        • P(a);
    • Try
      • S(B);
      • Vars
        • S(b);CHECK,OGATEB::QAB(A)+R(C),XS(b)
        • S(b);OGATEB::QAB(A)+R(C),XS(b)
      • Refutation
        • P(a);
    • Try
      • S(B);
      • Threat
        • B(E),XS(b)
      • Vars
        • S(b);CHECK,OGATE,XS(B)::QAB(A)+R(C),XS(b)
        • S(b);OGATEB::QAB(A)+R(C),XS(b)
      • Refutation
        • S(b);
    • Try
      • S(B);
      • Vars
        • S(b);CHECK,OGATEB::QAB(A)+R(C),XS(b)
        • S(b);OGATEB::QAB(A)+R(C),XS(b)
      • Refutation
        • P(a);
    • Try
      • R(C);XP(a)
      • Vars
        • S(b);CHECK::QAB(A)+S(B),XS(b)
        • S(b);::QAB(A)+S(B),XS(b)
        • S(b);OGATE::R(C)+B(E)
      • Refutation
        • S(b);XR(C)
    • Try
      • R(C);
      • Threat
        • B(E),XS(b)
      • Vars
        • S(b);CHECK::QAB(A)+S(B),XS(b)
        • S(b);::QAB(A)+S(B),XS(b)
      • Refutation
        • S(b);
  • Actual
    • S(B);
    • Threat
      • B(E),XS(b)
    • Vars
      • S(b);CHECK,OGATEB::QAB(A)+R(C),XS(b)
      • S(b);OGATE,XS(B)::QAB(A)+R(C),XS(b)
      • S(b);OGATEB::QAB(A)+R(C),XS(b)
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