MESON Chess Problem Database

Problem Display
PID: 287127 (8/b1p5/4p3/Q3R1p1/2NkPnR1/3B4/K3PPpB/8 w - - 0 1)

Subotic, Miroslav

Probleemblad, 2026

8/b1p5/4p3/Q3R1p1/2NkPnR1/3B4/K3PPpB/8

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sd5
      • 2.exd5#
  • Tries
    • 1.Kb3?
      • threat
        • 2.Qc3#
        • 2.Qa1#
      • 1...Sxd3
        • 2.Qc3#
        • 2.e3#
      • 1...g1Q
        • 2.Qc3#
      • 1...g1R
        • 2.Qc3#
      • 1...Sd5
        • 2.exd5#
      • 1...Sxe2!
    • 1.Sb2?
      • threat
        • 2.e3#
      • 1...Sxe2
        • 2.Qb4#
      • 1...Bc5
        • 2.Qxc5#
      • 1...Sd5
        • 2.exd5#
      • 1...c5!
    • 1.Sd2?
      • threat
        • 2.Sb3#
        • 2.Sf3#
      • 1...Sxd3
        • 2.e3#
      • 1...Bc5
        • 2.Sf3#
        • 2.Qxc5#
      • 1...c5
        • 2.Sf3#
      • 1...g1S
        • 2.Sb3#
      • 1...Sxe2!
    • 1.Rd5+?
      • 1...Sxd5
        • 2.Be5#
        • 2.exd5#
      • 1...exd5!
    • 1.Qd2?
      • threat
        • 2.Qb2#
        • 2.e3#
      • 1...Sxe2
        • 2.Bxe2#
      • 1...Sxd3
        • 2.Qxd3#
      • 1...Sd5!
    • 1.Qa3?
      • threat
        • 2.Qb2#
        • 2.e3#
      • 1...Sxd3
        • 2.Qxd3#
      • 1...Sd5
        • 2.exd5#
      • 1...Sxe2!
  • Keys
    • 1.Qb4!
      • threat
        • 2.Qb2#
      • 1...Sxe2
        • 2.Sb2#
      • 1...Sxd3
        • 2.e3#
      • 1...Sd5
        • 2.exd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(c);OGATE::R(H)+P(G),XS(c)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • P(a);::QAB1(I)
        • S(c);OGATE::R(H)+P(G),XS(c)
      • Refutation
        • S(c);XP(B)
    • Try
      • S(F);
      • Threat
        • P(B)
      • Vars
        • S(c);XP(B)::QAR2(I)
        • B(f);N_GUARD::QAB1(I),XB(f)
        • S(c);OGATE::R(H)+P(G),XS(c)
      • Refutation
        • P(g);
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);SBLOCK,XB(E)::P(B)
        • P(g);::S(F)
        • P(a);::S(F)
      • Refutation
        • S(c);XP(B)
    • Try
      • R(J);CHECK
      • Refutation
        • P(e);XR(J)
    • Try
      • Q(I);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);OGATE,XP(B)::QAR(I)+B(E),XS(c)
        • S(c);OGATE,P_SPINS(c),XB(E)::QAR1(I),XS(c)
      • Refutation
        • S(c);
    • Try
      • Q(I);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);OGATE,XB(E)::QAR1(I),XS(c)
        • S(c);OGATE::R(H)+P(G),XS(c)
      • Refutation
        • S(c);XP(B)
  • Actual
    • Q(I);
    • Threat
      • QAB(I)
    • Vars
      • S(c);XP(B)::QAR(I)+S(F)
      • S(c);SBLOCK,XB(E)::P(B)
      • S(c);OGATE::R(H)+P(G),XS(c)
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