MESON Chess Problem Database

Problem Display
PID: 266939 (2R5/5bKB/8/RP2B3/4N3/1krp4/Nb3Q2/8 w - - 0 1)

Gomez, Luis

Zaldo MT (Problemas), 2019

2R5/5bKB/8/RP2B3/4N3/1krp4/Nb3Q2/8

#2

9 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Sd2#
      • 2.Qxb2#
    • 1...Rc4
      • 2.Qxb2#
    • 1...Bc1
      • 2.Rxc3#
    • 1...Ba3
      • 2.Rxc3#
    • 1...Bc4
      • 2.Sc5#
    • 1...d2
      • 2.Sxd2#
  • Tries
    • 1.Sc5+?
      • 1...Kc4
        • 2.Qd4#
        • 2.Qxf7#
      • 1...Rxc5!
    • 1.Bxc3?
      • threat
        • 2.Qxb2#
      • 1...Bxc3+
        • 2.Rxc3#
      • 1...d2
        • 2.Sxd2#
      • 1...Ba1
        • 2.Sc1#
      • 1...Bc1
        • 2.Sxc1#
      • 1...Ba3!
    • 1.Qxf7+?
      • 1...Rc4
        • 2.Qxc4#
      • 1...Kc2!
  • Keys
    • 1.Rc4!
      • threat
        • 2.Rb4#
      • 1...Kxc4
        • 2.Qxf7#
      • 1...Rxc4
        • 2.Qxb2#
      • 1...Bxc4
        • 2.Sc5#
      • 1...d2
        • 2.Sxd2#
      • 1...Ba3
        • 2.Rxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(c);P_PINB(F)::QAR1(B),XB(a)
    • B(a);N_GUARD::R1(I),XR(c)
    • B(e);SBLOCK,S_CUTR(c)::S(C)
    • P(d);::S(C),XP(d)
  • Tries
    • Try
      • S(C);CHECK
      • Refutation
        • R(c);P_PINB(F),XS(C)
    • Try
      • B(F);P_SPINB(F),XR(c)
      • Threat
        • QAR1(B),XB(a)
      • Vars
        • B(a);CHECK,OGATE,XB(F)::R1(I),XB(a)
        • P(d);::S(C),XP(d)
        • B(a);N_GUARD::S(A)
        • B(a);N_GUARD,N_PINB(F)::S(A),XB(a)
      • Refutation
        • B(a);N_PINB(F)
    • Try
      • Q(B);CHECK,XB(e)
      • Vars
        • R(c);N_GUARD,P_PINB(F),P_SPINR(c)::QAB1(B),XR(c)
      • Refutation
        • K(b);P_SPINR(c),S_FLIGHT
  • Actual
    • R(I);
    • Threat
      • R1(I)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XR(I)::QAB(B),XB(e)
      • R(c);P_PINB(F),SBLOCK,XR(I)::QAR1(B),XB(a)
      • B(e);SBLOCK,XR(I)::S(C)
      • P(d);::S(C),XP(d)
      • B(a);N_GUARD::R1(I),XR(c)
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