MESON Chess Problem Database

Problem Display
PID: 168959 (N2nK3/p4pp1/pp1k4/2RpR3/4p3/4QNP1/BPP2B2/6r1 w - - 0 1)

Sovik, Stefan

SuperProblem, 2015

N2nK3/p4pp1/pp1k4/2RpR3/4p3/4QNP1/BPP2B2/6r1

#2

11 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sc6
      • 2.Rcxd5#
    • 1...Se6
      • 2.Rexd5#
    • 1...exf3
      • 2.Rexd5#
    • 1...d4
      • 2.Qxd4#
    • 1...bxc5
      • 2.Qxc5#
  • Tries
    • 1.Rc7?
      • threat
        • 2.Qa3#
      • 1...exf3
        • 2.Rxd5#
      • 1...Sc6
        • 2.Rd7#
      • 1...Se6
        • 2.Rxd5#
      • 1...b5
        • 2.Qc5#
      • 1...Sb7!
    • 1.Re7?
      • threat
        • 2.Qf4#
      • 1...bxc5
        • 2.Qxc5#
      • 1...d4
        • 2.Qxd4#
      • 1...Sc6
        • 2.Rxd5#
      • 1...Se6
        • 2.Rd7#
      • 1...g5!
    • 1.Qd2?
      • threat
        • 2.Qxd5#
      • 1...d4
        • 2.Qxd4#
      • 1...Rd1!
    • 1.Qb3?
      • threat
        • 2.Qxd5#
      • 1...d4
        • 2.Qd5#
      • 1...Rd1!
    • 1.Qc3?
      • threat
        • 2.Rcxd5#
      • 1...bxc5
        • 2.Qxc5#
      • 1...d4
        • 2.Rcd5#
        • 2.Qxd4#
      • 1...Rd1!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Rcxd5#
        • 2.Rexd5#
      • 1...Kxc5
        • 2.Qa3#
      • 1...Kxe5
        • 2.Qf4#
      • 1...bxc5
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • S(j);SBLOCK::R1(H),XP(c)
    • S(j);SBLOCK::R1(I),XP(c)
    • P(b);XS(F)::R1(I),XP(c)
    • P(c);OGATEB::QAR2(E),XP(c)
    • P(e);OGATE,XR(H)::QAB1(E),XP(e)
  • Tries
    • Try
      • R(H);
      • Threat
        • QAB(E)
      • Vars
        • P(b);XS(F)::R1(I),XP(c)
        • S(j);SBLOCK::R1(H)
        • S(j);SBLOCK::R1(I),XP(c)
        • P(e);N_GUARD::QAB1(E)
      • Refutation
        • S(j);
    • Try
      • R(I);
      • Threat
        • QAB(E)
      • Vars
        • P(e);OGATE,XR(H)::QAB1(E),XP(e)
        • P(c);OGATEB::QAR2(E),XP(c)
        • S(j);SBLOCK::R1(H),XP(c)
        • S(j);SBLOCK::R1(I)
      • Refutation
        • P(i);
    • Try
      • Q(E);P_PINP(c)
      • Threat
        • QAR1(E),XP(c)
      • Vars
        • P(c);OGATEB::QAR2(E),XP(c)
      • Refutation
        • R(a);
    • Try
      • Q(E);
      • Threat
        • QAR1(E),XP(c)
      • Vars
        • P(c);::QAR1(E)
      • Refutation
        • R(a);
    • Try
      • Q(E);
      • Threat
        • R1(H),XP(c)
      • Vars
        • P(e);OGATE,XR(H)::QAB1(E),XP(e)
      • Refutation
        • R(a);
  • Actual
    • S(F);
    • Threat
      • DUALS(2)
    • Vars
      • K(f);OGATEB,P_SPINP(c),S_FLIGHT,XR(H)::QAB(E)
      • K(f);OGATEB,P_SPINP(b),S_FLIGHT,XR(I)::QAB1(E)
      • P(e);XR(H)::R1(I),XP(c)
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