MESON Chess Problem Database

Problem Display
PID: 263186 (1rn5/3p1Q2/2PP2B1/1pK1krR1/1ppp1N2/4P3/2qB4/bb6 w - - 0 1)

Murashev, Pavel Aleksandrovich

SuperProblem, 2021

1rn5/3p1Q2/2PP2B1/1pK1krR1/1ppp1N2/4P3/2qB4/bb6

#2

9 + 12

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4+
      • 2.Qd5#
    • 1...Qe4
      • 2.Qg7#
    • 1...Rxg5
      • 2.Qg7#
    • 1...Sb6
      • 2.Qe7#
    • 1...Sxd6
      • 2.Qe7#
    • 1...Sa7
      • 2.Qe7#
    • 1...Se7
      • 2.Qxe7#
    • 1...d3
      • 2.Qxf5#
    • 1...dxc6
      • 2.Qe6#
  • Tries
    • 1.Sh5?
      • threat
        • 2.Qd5#
      • 1...Ke4+
        • 2.Qxf5#
      • 1...Qe4
        • 2.Qf6#
      • 1...Sb6
        • 2.Qe7#
      • 1...Se7
        • 2.Qxe7#
      • 1...dxc6!
    • 1.Bxf5?
      • threat
        • 2.Sg6#
        • 2.Bxc2#
        • 2.Bd3#
        • 2.Qg7#
      • 1...Qxd2
        • 2.Sg6#
        • 2.Bxb1#
        • 2.Bc2#
        • 2.Bd3#
        • 2.Qg7#
      • 1...Sxd6
        • 2.Sg6#
        • 2.Qe7#
        • 2.Qg7#
      • 1...dxe3
        • 2.Sg6#
        • 2.Bxc2#
        • 2.Bd3#
      • 1...Qd1
        • 2.Sg6#
        • 2.Bxb1#
        • 2.Bc2#
        • 2.Bd3#
        • 2.Qg7#
      • 1...Qb3
        • 2.Sg6#
        • 2.Bxb1#
        • 2.Bc2#
        • 2.Bd3#
        • 2.Qg7#
      • 1...Qd3
        • 2.Sg6#
        • 2.Bxd3#
        • 2.Qg7#
      • 1...Qa4
        • 2.Sg6#
        • 2.Bxb1#
        • 2.Bc2#
        • 2.Bd3#
        • 2.Qg7#
      • 1...Qe4
        • 2.Sg6#
        • 2.Qg7#
      • 1...Qc1
        • 2.Sg6#
        • 2.Bxb1#
        • 2.Bc2#
        • 2.Bd3#
        • 2.Qg7#
      • 1...Qa2
        • 2.Sg6#
        • 2.Bxb1#
        • 2.Bc2#
        • 2.Bd3#
        • 2.Qg7#
      • 1...Qb2
        • 2.Sg6#
        • 2.Bxb1#
        • 2.Bc2#
        • 2.Bd3#
        • 2.Qg7#
      • 1...Qc3
        • 2.Sg6#
        • 2.Bxb1#
        • 2.Bc2#
        • 2.Bd3#
        • 2.Qg7#
      • 1...Se7
        • 2.Qxe7#
        • 2.Qg7#
      • 1...d3
        • 2.Sg6#
        • 2.Bxd3#
        • 2.Bg6#
        • 2.Bh7#
        • 2.Qg7#
      • 1...Qxf5!
    • 1.Rxf5+?
      • 1...Ke4
        • 2.Qd5#
      • 1...Qxf5!
    • 1.Qe8+?
      • 1...Se7
        • 2.Qxe7#
      • 1...Kf6+!
    • 1.exd4+?
      • 1...Ke4+
        • 2.Qd5#
      • 1...Bxd4+!
    • 1.cxd7?
      • threat
        • 2.Qe6#
      • 1...Ke4+
        • 2.Qd5#
      • 1...dxe3!
  • Keys
    • 1.e4!
      • threat
        • 2.Qxf5#
      • 1...Kxe4+
        • 2.Qd5#
      • 1...Qxe4
        • 2.Qg7#
      • 1...Rxg5
        • 2.Qg7#
      • 1...Sxd6
        • 2.Qe7#
      • 1...Se7
        • 2.Qxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • K(h);CHECK,N_GUARD,P-FLIGHT::QAB1(I)
    • Q(c);SBLOCK::QAB(I)
    • R(i);N_SPINR(i),XR(E)::QAB(I)
    • S(l);N_GUARD::QAR2(I)
    • S(l);N_GUARD,XP(G)::QAR2(I)
    • S(l);N_GUARD::QAR2(I),XS(l)
    • P(f);S_CUTQ(c)::QAR1(I),XR(i)
    • P(j);N_GUARD,XP(F)::QAR1(I)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAR1(I)
      • Vars
        • K(h);CHECK,P-FLIGHT,S_CUTQ(c)::QAB1(I),XR(i)
        • Q(c);SBLOCK::QAB1(I)
        • S(l);N_GUARD::QAR2(I)
        • S(l);N_GUARD::QAR2(I),XS(l)
      • Refutation
        • P(j);XP(F)
    • Try
      • B(H);XR(i)
      • Threat
        • DUALS(4)
      • Refutation
        • Q(c);P_SPINQ(c),XB(H)
    • Try
      • R(E);CHECK,XR(i)
      • Vars
        • K(h);P-FLIGHT::QAB1(I)
      • Refutation
        • Q(c);XR(E)
    • Try
      • Q(I);CHECK
      • Vars
        • S(l);N_GUARD,P_SPINS(l)::QAR2(I),XS(l)
      • Refutation
        • K(h);CHECK,N_SPINR(i),S_FLIGHT
    • Try
      • P(B);CHECK,XP(f)
      • Vars
        • K(h);CHECK,N_GUARD,P-FLIGHT::QAB1(I)
      • Refutation
        • B(a);CHECK,XP(B)
    • Try
      • P(F);XP(j)
      • Threat
        • QAR1(I)
      • Vars
        • K(h);CHECK,N_GUARD,P-FLIGHT::QAB1(I)
      • Refutation
        • P(f);XP(B)
  • Actual
    • P(B);
    • Threat
      • QAR1(I),XR(i)
    • Vars
      • K(h);CHECK,N_GUARD,P-FLIGHT,XP(B)::QAB1(I)
      • Q(c);SBLOCK,XP(B)::QAB(I)
      • R(i);N_SPINR(i),XR(E)::QAB(I)
      • S(l);N_GUARD,XP(G)::QAR2(I)
      • S(l);N_GUARD::QAR2(I),XS(l)
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