MESON Chess Problem Database

Problem Display
PID: 267411 (5B2/3p1N2/1K1R2p1/3pNq2/2pkrp2/1P1n1B2/1p1PQ3/8 w - - 0 1)

Uris, Miguel

Zaldo MT (Problemas), 2019

5B2/3p1N2/1K1R2p1/3pNq2/2pkrp2/1P1n1B2/1p1PQ3/8

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qh3
      • 2.Qxe4#
    • 1...Qg4
      • 2.Qxe4#
    • 1...Qe6
      • 2.Qxe4#
    • 1...Qg5
      • 2.Qxe4#
    • 1...Qh5
      • 2.Qxe4#
    • 1...Qf6
      • 2.Qxe4#
    • 1...Qxf7
      • 2.Qxe4#
    • 1...Rxe2
      • 2.Rxd5#
    • 1...Re3
      • 2.Rxd5#
    • 1...Sc1
      • 2.Qxc4#
    • 1...Se1
      • 2.Qxc4#
    • 1...Sf2
      • 2.Qxc4#
    • 1...Sb4
      • 2.Qxc4#
    • 1...Sc5
      • 2.Qxc4#
    • 1...cxb3
      • 2.Qxd3#
    • 1...c3
      • 2.Qxd3#
  • Tries
    • 1.Qf2+?
      • 1...Re3
        • 2.Rxd5#
      • 1...Sxf2!
    • 1.Qe3+?
      • 1...Rxe3
        • 2.Rxd5#
      • 1...fxe3!
  • Keys
    • 1.Bg7!
      • threat
        • 2.Sc6#
      • 1...Qxe5
        • 2.Qxe4#
      • 1...Rxe5
        • 2.Rxd5#
      • 1...Sxe5
        • 2.Qxc4#
      • 1...cxb3
        • 2.Qxd3#
      • 1...Qf6
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 14
  • Sets
    • Q(h);N_GUARD::QAR1(B),XR(e)
    • Q(h);N_GUARD,P_PINR(G)::QAR1(B),XR(e)
    • Q(h);N_GUARD,XS(H)::QAR1(B),XR(e)
    • R(e);XQ(B)::R1(G),XP(g)
    • R(e);::R1(G),XP(g)
    • S(b);OGATE::QAR1(B),XP(c)
    • P(c);N_GUARD,XP(C)::QAR1(B),XS(b)
    • P(c);N_GUARD::QAR1(B),XS(b)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • R(e);P_SPINR(e)::R1(G),XP(g)
      • Refutation
        • S(b);XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • R(e);XQ(B)::R1(G),XP(g)
      • Refutation
        • P(f);XQ(B)
  • Actual
    • B(I);
    • Threat
      • B(I)+S(E),DCHECK
    • Vars
      • Q(h);N_GUARD,P_SPINQ(h),XS(E)::QAR1(B),XR(e)
      • R(e);P_SPINR(e),XS(E)::R1(G),XP(g)
      • S(b);OGATE,P_SPINS(b),XS(E)::QAR1(B),XP(c)
      • P(c);N_GUARD,XP(C)::QAR1(B),XS(b)
      • Q(h);N_GUARD,P_PINR(G)::QAR1(B),XR(e)
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