MESON Chess Problem Database

Problem Display
PID: 287101 (3QR1nB/1bpN4/2Pkn3/1P2p3/1PRbPp2/NKp1p3/2Prq3/8 w - - 0 1)

Svitek, Miroslav

Problem Paradise, 2022

3QR1nB/1bpN4/2Pkn3/1P2p3/1PRbPp2/NKp1p3/2Prq3/8

#2

12 + 12

15601 Albrecht-Leiss-Degener Collection 2026

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc4+
      • 2.Sxc4#
    • 1...Bc5
      • 2.Bxe5#
    • 1...Bb6
      • 2.Bxe5#
    • 1...Ba7
      • 2.Bxe5#
    • 1...Bxc6
      • 2.Rxc6#
    • 1...Sc5+
      • 2.Sxc5#
    • 1...Sg5
      • 2.Sc5#
      • 2.Sxe5#
      • 2.Sb6#
      • 2.Sf6#
      • 2.Sb8#
      • 2.Sf8#
    • 1...Sg7
      • 2.Sc5#
      • 2.Sxe5#
      • 2.Sb6#
      • 2.Sf6#
      • 2.Sb8#
      • 2.Sf8#
    • 1...Sf8
      • 2.Sxf8#
    • 1...Sf6
      • 2.Qe7#
    • 1...Sh6
      • 2.Qe7#
    • 1...Se7
      • 2.Qxe7#
  • Tries
    • 1.Rxd4+?
      • 1...Rxd4
        • 2.Bxe5#
      • 1...exd4
        • 2.Be5#
      • 1...Sxd4+!
  • Keys
    • 1.Rc5!
      • threat
        • 2.Rd5#
      • 1...Qc4+
        • 2.Sxc4#
      • 1...Sxc5+
        • 2.Sxc5#
      • 1...Qxb5
        • 2.Sxb5#
      • 1...Bxc5
        • 2.Bxe5#
      • 1...Bxc6
        • 2.Rxc6#
      • 1...Sf6
        • 2.Qe7#
      • 1...Se7
        • 2.Qxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • Q(b);CHECK,XR(E)::S(B),XQ(b)
    • B(e);N_GUARD::B(L),XP(g)
    • B(j);OGATE,XP(H)::R1(E),XB(j)
    • S(i);CHECK,N_GUARD::QAR(J)+S(I),XS(i)
    • S(i);N_GUARD::QAR(J)+S(I),XS(i)
    • S(l);N_GUARD::QAB1(J)
    • S(l);N_GUARD::QAB1(J),XS(l)
  • Tries
    • Try
      • R(E);CHECK,XB(e)
      • Vars
        • R(a);XR(E)::B(L),XP(g)
        • P(g);XR(E)::B(L)
      • Refutation
        • S(i);CHECK,XR(E)
  • Actual
    • R(E);
    • Threat
      • R1(E)
    • Vars
      • Q(b);CHECK,N_GUARD::S(B),XQ(b)
      • S(i);CHECK,XR(E)::QAR(J)+S(I),XS(i)
      • Q(b);P_PINP(D),XP(G)::S(B),XQ(b)
      • B(e);N_GUARD,XR(E)::B(L),XP(g)
      • B(j);OGATE,XP(H)::R1(E),XB(j)
      • S(l);N_GUARD::QAB1(J)
      • S(l);N_GUARD::QAB1(J),XS(l)
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