MESON Chess Problem Database

Problem Display
PID: 274451 (q2b4/B2Bp1N1/4R3/2pk1PrQ/R2P2p1/8/4PnK1/8 w - - 0 1)

Burda, Josef

64 Shakhmatnoe obozrenie, 2024

q2b4/B2Bp1N1/4R3/2pk1PrQ/R2P2p1/8/4PnK1/8

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qc6
      • 2.Bxc6#
    • 1...Qxa7
      • 2.Bc6#
    • 1...Qb8
      • 2.Bc6#
    • 1...Rxf5
      • 2.Qxf5#
    • 1...Rg6
      • 2.fxg6#
    • 1...Sd1
      • 2.e4#
    • 1...Sh1
      • 2.e4#
    • 1...Sd3
      • 2.e4#
    • 1...Sh3
      • 2.e4#
    • 1...cxd4
      • 2.Rxd4#
  • Tries
    • 1.Kxf2?
      • threat
        • 2.Qh1#
        • 2.e4#
      • 1...Rxf5+
        • 2.Qxf5#
      • 1...Rxh5
        • 2.e4#
      • 1...cxd4
        • 2.Rxd4#
        • 2.Qh1#
      • 1...g3+!
  • Keys
    • 1.Se8!
      • threat
        • 2.Re5#
      • 1...Rxf5
        • 2.Qxf5#
      • 1...cxd4
        • 2.Rxd4#
      • 1...Qb8
        • 2.Bc6#
      • 1...Bc7
        • 2.Sxc7#
      • 1...Sd3
        • 2.e4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • Q(g);N_GUARD::B(I),XQ(g)
    • Q(g);N_GUARD,XB(H)::B(I)
    • Q(g);N_GUARD::B(I)
    • R(e);OGATE,P_SPINR(e),XP(E)::QAR2(F),XR(e)
    • R(e);OGATE::QAR(F)+P(E),XR(e)
    • S(a);N_GUARD::P(A)
    • P(c);OGATE,XP(D)::R1(C),XP(c)
  • Tries
    • Try
      • K(B);P-FLIGHT,XS(a)
      • Threat
        • DUALS(2)
      • Vars
        • R(e);CHECK,OGATE,P_SPINR(e),XP(E)::QAR2(F),XR(e)
        • R(e);XQ(F)::P(A)
      • Refutation
        • P(b);CHECK
  • Actual
    • S(J);
    • Threat
      • R1(G)
    • Vars
      • R(e);OGATE,P_SPINR(e),XP(E)::QAR2(F),XR(e)
      • P(c);OGATE,XP(D)::R1(C),XP(c)
      • Q(g);N_GUARD::B(I)
      • B(h);N_GUARD::S(J),XB(h)
      • S(a);N_GUARD::P(A)
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