MESON Chess Problem Database

Problem Display
PID: 186268 (2B5/4B3/3N4/4k3/1pP2p2/1P4r1/K2Q1p2/5R1b w - - 0 1)

Kupper, Josef

idee & form, 2016

2B5/4B3/3N4/4k3/1pP2p2/1P4r1/K2Q1p2/5R1b

#2

8 + 6

15601 Albrecht-Leiss-Degener Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Qb2#
    • 1...Rg2
      • 2.Qb2#
      • 2.Qd5#
    • 1...Rf3
      • 2.Qd5#
    • 1...Rg4
      • 2.Qb2#
    • 1...Rg5
      • 2.Qb2#
    • 1...Rg6
      • 2.Qb2#
    • 1...Rg7
      • 2.Qb2#
    • 1...Rg8
      • 2.Qb2#
    • 1...Bf3
      • 2.Qb2#
    • 1...Be4
      • 2.Sf7#
    • 1...Bd5
      • 2.Qxd5#
    • 1...f3
      • 2.Qe3#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Qd4#
      • 1...Ke4
        • 2.Qd5#
      • 1...Rd3!
    • 1.Rxh1?
      • threat
        • 2.Qd5#
      • 1...f3
        • 2.Qe3#
      • 1...Rd3!
    • 1.Rxf2?
      • threat
        • 2.Qxf4#
      • 1...Rf3
        • 2.Qd5#
      • 1...Rg4
        • 2.Qb2#
      • 1...Bf3
        • 2.Qb2#
      • 1...Be4
        • 2.Sf7#
      • 1...f3
        • 2.Qe3#
      • 1...Re3!
    • 1.Qe2+?
      • 1...Kd4
        • 2.Sb5#
      • 1...Be4
        • 2.Qxe4#
      • 1...Re3!
  • Keys
    • 1.Qxf2!
      • threat
        • 2.Qxf4#
      • 1...f3
        • 2.Qe3#
      • 1...Rg2
        • 2.Re1#
      • 1...Rf3
        • 2.Qc5#
      • 1...Rg4
        • 2.Qb2#
      • 1...Bf3
        • 2.Qb2#
      • 1...Be4
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • R(c);N_GUARD::QAB(C)
    • R(c);S_CUTB(a)::QAR1(C)
    • B(a);S_CUTR(c)::QAB(C)
    • B(a);SBLOCK::S(F)
    • B(a);N_GUARD::QAR1(C),XB(a)
    • P(e);N_GUARD,S_CUTB(a),S_CUTR(c)::QAR2(C)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAB1(C)
      • Vars
        • K(f);P-FLIGHT::QAB1(C)
      • Refutation
        • R(c);
    • Try
      • R(A);XB(a)
      • Threat
        • QAR1(C)
      • Vars
        • P(e);N_GUARD,S_CUTR(c)::QAR2(C)
      • Refutation
        • R(c);
    • Try
      • R(A);XP(b)
      • Threat
        • QAB1(C),XP(e)
      • Vars
        • R(c);S_CUTB(a)::QAR1(C)
        • R(c);N_GUARD::QAB(C)
        • B(a);S_CUTR(c)::QAB(C)
        • B(a);SBLOCK::S(F)
        • P(e);N_GUARD,S_CUTB(a),S_CUTR(c)::QAR2(C)
      • Refutation
        • R(c);
    • Try
      • Q(C);CHECK
      • Vars
        • K(f);S_FLIGHT::S(F)
        • B(a);N_GUARD,P_SPINB(a)::QAR1(C),XB(a)
      • Refutation
        • R(c);P_SPINR(c)
  • Actual
    • Q(C);XP(b)
    • Threat
      • QAB1(C),XP(e)
    • Vars
      • P(e);N_GUARD,S_CUTB(a),S_CUTR(c)::QAR2(C)
      • R(c);N_GUARD,P_PINQ(C),S_CUTB(a)::R(A)
      • R(c);S_CUTB(a)::QAR2(C)
      • R(c);N_GUARD::QAB(C)
      • B(a);S_CUTR(c)::QAB(C)
      • B(a);SBLOCK::S(F)
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