MESON Chess Problem Database

Problem Display
PID: 255664 (q1r5/p3p3/B2NK3/7R/Rn1kPp1N/p7/1n1P3p/B3br1Q w - - 0 1)

Svitek, Miroslav

idee & form, 2019

q1r5/p3p3/B2NK3/7R/Rn1kPp1N/p7/1n1P3p/B3br1Q

#2

10 + 12

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe4+
      • 2.Qxe4#
    • 1...Qd5+
      • 2.Rxd5#
    • 1...Qb8
      • 2.Rd5#
    • 1...Rg1
      • 2.Sf3#
    • 1...Rxh1
      • 2.Sf3#
    • 1...Rf3
      • 2.Sxf3#
    • 1...Rc6
      • 2.Rd5#
    • 1...Rd8
      • 2.Rxb4#
    • 1...Re8
      • 2.Rxb4#
    • 1...Rf8
      • 2.Rxb4#
    • 1...Rg8
      • 2.Rxb4#
    • 1...Rh8
      • 2.Rxb4#
    • 1...Bf2
      • 2.Sf3#
  • Tries
    • 1.Bxb2+?
      • 1...Rc3
        • 2.Bxc3#
        • 2.Rxb4#
      • 1...axb2!
  • Keys
    • 1.Qf3!
      • threat
        • 2.Qd3#
      • 1...Qxe4+
        • 2.Qxe4#
      • 1...Qd5+
        • 2.Rxd5#
      • 1...Rxf3
        • 2.Sxf3#
      • 1...Rc3
        • 2.Qxc3#
      • 1...Rc4
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 10
  • Sets
    • Q(k);CHECK,OGATE,XP(E)::QAR1(B),XQ(k)
    • Q(k);CHECK,N_GUARD::R1(G),XQ(k)
    • Q(k);N_GUARD::R1(G)
    • R(b);N_GUARD::S(F)
    • R(b);N_GUARD,XQ(B)::S(F)
    • R(b);N_GUARD::S(F),XR(b)
    • R(l);P_PINS(I),S_CUTQ(k)::R1(G)
    • R(l);N_GUARD::R(D),XS(f)
    • B(a);S_CUTR(b)::S(F)
  • Tries
    • Try
      • B(A);CHECK,P_PINS(f),XS(c)
      • Refutation
        • P(e);XB(A)
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • Q(k);CHECK,OGATE,XP(E)::QAR1(B),XQ(k)
      • Q(k);CHECK,N_GUARD::R1(G),XQ(k)
      • R(b);XQ(B)::S(F),XR(b)
      • R(l);N_GUARD,N_SPINS(c),P_SPINS(f)::QAB1(B),XR(l)
      • R(l);SBLOCK::S(I)
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