MESON Chess Problem Database

Problem Display
PID: 265995 (8/6p1/6Q1/Kp6/PB6/1p2P3/pkN1N2R/bn5R w - - 0 1)

Sovik, Stefan

1/2 Prize, Pat a Mat, 2017

8/6p1/6Q1/Kp6/PB6/1p2P3/pkN1N2R/bn5R

#2

9 + 7

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sd2
      • 2.Ba3#
      • 2.Bc3#
    • 1...Sa3
      • 2.Bxa3#
      • 2.Bc3#
    • 1...Sc3
      • 2.Ba3#
      • 2.Bxc3#
  • Tries
    • 1.Kxb5?
      • 1...Sa3+
        • 2.Bxa3#
      • 1...Sc3+
        • 2.Bxc3#
      • 1...Sd2
        • 2.Ba3#
        • 2.Bc3#
      • 1...bxc2!
    • 1.Sc1?
      • threat
        • 2.Sd3#
      • 1...bxc2
        • 2.Rxc2#
        • 2.Qxc2#
      • 1...Sd2!
    • 1.Sc3?
      • 1...Sxc3
        • 2.Ba3#
      • 1...bxc2
        • 2.Qxc2#
      • 1...bxa4
        • 2.Sxa4#
      • 1...Sa3
        • 2.Sxa3#
      • 1...Sd2!
    • 1.Sf4?
      • threat
        • 2.Sd3#
      • 1...bxc2
        • 2.Qxc2#
      • 1...Sd2!
    • 1.Rc1?
      • 1...bxc2
        • 2.Qxc2#
      • 1...Sd2
        • 2.Ba3#
        • 2.Bc3#
        • 2.Qxg7#
      • 1...Sa3
        • 2.Bxa3#
        • 2.Bc3#
        • 2.Qxg7#
      • 1...Sc3
        • 2.Ba3#
        • 2.Bxc3#
      • 1...bxa4!
    • 1.Qxg7+?
      • 1...Sc3
        • 2.Qxc3#
      • 1...Kxc2!
    • 1.axb5?
      • 1...Sd2
        • 2.Ba3#
        • 2.Bc3#
      • 1...Sa3
        • 2.Bxa3#
        • 2.Bc3#
      • 1...Sc3
        • 2.Ba3#
        • 2.Bxc3#
      • 1...bxc2!
  • Keys
    • 1.Sa3!
      • 1...Sxa3
        • 2.Bc3#
      • 1...bxa4
        • 2.Sc4#
      • 1...Sd2
        • 2.Qxg7#
      • 1...Sc3
        • 2.Sxc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(H);P-FLIGHT,XP(f)
      • Vars
        • S(b);CHECK,N_GUARD::B(G),XS(b)
      • Refutation
        • P(e);XS(B)
    • Try
      • S(C);
      • Threat
        • S(C)
      • Refutation
        • S(b);
    • Try
      • S(C);
      • Vars
        • S(b);N_GUARD,SBLOCK,XS(C)::B(G)
        • P(e);OGATE,P_SPINP(e),XS(B)::QAR1(I),XP(e)
        • P(f);XP(F)::S(C),XP(f)
        • S(b);N_GUARD::R(D)+S(B),XS(b)
      • Refutation
        • S(b);
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • P(e);OGATE,P_SPINP(e),XS(B)::QAR1(I),XP(e)
      • Refutation
        • S(b);
    • Try
      • R(A);
      • Vars
        • P(e);OGATE,XS(B)::QAR1(I),XP(e)
      • Refutation
        • P(f);XP(F)
    • Try
      • Q(I);CHECK,XP(g)
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAB1(I),XS(b)
      • Refutation
        • K(d);P-FLIGHT,XS(B)
    • Try
      • P(F);XP(f)
      • Refutation
        • P(e);XS(B)
  • Actual
    • S(B);
    • Vars
      • S(b);N_GUARD,SBLOCK,XS(B)::B(G)
      • P(f);N_GUARD,XP(F)::S(B)
      • S(b);N_GUARD::QAB(I),XP(g)
      • S(b);N_GUARD::R(D)+S(C),XS(b)
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