MESON Chess Problem Database

Problem Display
PID: 168982 (1nn3b1/1N3pP1/1NP4Q/3PkPp1/R1R1p1K1/2p1rp2/3bpBP1/4q3 w - - 0 1)

Mlynka, Karol

SuperProblem, 2016

1nn3b1/1N3pP1/1NP4Q/3PkPp1/R1R1p1K1/2p1rp2/3bpBP1/4q3

#2

12 + 13

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Bg3#
    • 1...Qb1
      • 2.Bg3#
    • 1...Qc1
      • 2.Bg3#
    • 1...Qd1
      • 2.Bg3#
    • 1...Qf1
      • 2.Bg3#
    • 1...Qg1
      • 2.Bg3#
    • 1...Qh1
      • 2.Bg3#
    • 1...Rd3
      • 2.Rxe4#
    • 1...Sxb6
      • 2.Qd6#
    • 1...Sd6
      • 2.Qxd6#
    • 1...Sa7
      • 2.Qd6#
    • 1...Se7
      • 2.Qd6#
    • 1...f6
      • 2.Qh2#
  • Tries
    • 1.Kxg5?
      • threat
        • 2.Qh2#
        • 2.Qf6#
      • 1...f6+
        • 2.Qxf6#
      • 1...Qxf2
        • 2.Qf6#
      • 1...Sxb6
        • 2.Qd6#
      • 1...fxg2
        • 2.Qf6#
      • 1...Qg1
        • 2.Bg3#
        • 2.Qf6#
      • 1...Qh1
        • 2.Bg3#
        • 2.Qf6#
      • 1...Sd7
        • 2.Qh2#
      • 1...Rd3+!
    • 1.Sd7+?
      • 1...Kxd5
        • 2.Rd4#
        • 2.Rc5#
      • 1...Sxd7!
    • 1.Sxc8?
      • threat
        • 2.Qd6#
      • 1...Kxd5
        • 2.Rc5#
        • 2.Qd6#
      • 1...f6!
    • 1.Qxg5?
      • threat
        • 2.f6#
      • 1...Rd3
        • 2.Rxe4#
      • 1...Sd6
        • 2.Qe7#
      • 1...Se7
        • 2.Qxe7#
      • 1...f6
        • 2.Qf4#
      • 1...Bh7!
  • Keys
    • 1.Rc5!
      • threat
        • 2.d6#
      • 1...Sxb6
        • 2.Qd6#
      • 1...Rd3
        • 2.Sc4#
      • 1...Sa6
        • 2.Sd7#
      • 1...Sd7
        • 2.Sxd7#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Se7
        • 2.Qd6#
      • 1...f6
        • 2.Qh2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • Q(a);N_GUARD::B(A)
    • Q(a);N_GUARD,P_PINP(B)::B(A)
    • R(e);N_GUARD::R1(D),XP(g)
    • S(l);N_GUARD,XS(H)::QAB1(J)
    • S(l);N_GUARD::QAB1(J),XS(l)
    • S(l);N_GUARD::QAB1(J)
    • P(j);SBLOCK::QAB(J)
  • Tries
    • Try
      • K(E);P-FLIGHT,XP(i)
      • Threat
        • DUALS(2)
      • Vars
        • P(j);CHECK::QAB1(J),XP(j)
        • Q(a);XB(A)::QAB1(J)
        • S(l);N_GUARD,XS(H)::QAB1(J)
        • P(f);XP(B)::QAB1(J)
        • S(k);::QAB(J)
      • Refutation
        • R(e);CHECK
    • Try
      • S(H);CHECK
      • Refutation
        • S(k);XS(H)
    • Try
      • S(H);XS(l)
      • Threat
        • QAB1(J)
      • Refutation
        • P(j);
    • Try
      • Q(J);XP(i)
      • Threat
        • QAR(J)+P(G)
      • Vars
        • R(e);N_GUARD::R1(D),XP(g)
        • S(l);N_GUARD::QAR2(J)
        • S(l);N_GUARD::QAR2(J),XS(l)
        • P(j);SBLOCK::QAB1(J)
      • Refutation
        • B(m);
  • Actual
    • R(D);
    • Threat
      • R(D)+P(F)
    • Vars
      • S(l);N_GUARD,XS(H)::QAB1(J)
      • R(e);::S(H)
      • S(k);N_GUARD::S(H)
      • S(k);N_GUARD::S(H),XS(k)
      • S(l);N_GUARD::QAB1(J),XS(l)
      • S(l);N_GUARD::QAB1(J)
      • P(j);SBLOCK::QAB(J)
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